Friday, March 09, 2018

Daniel Everett: Homo erectus Could Speak and Make Boats

Bentley University Global Studies professor Daniel Everett argues that Homo erectus could speak and had the ability to make ocean-going vessels.  The Guardian has the story:
“Oceans were never a barrier to the travels of Erectus. He travelled all over the world, travelled to the island of Flores, across one of the greatest ocean currents in the world,” said Daniel Everett, professor of global studies at Bentley University, and author of How Language Began. “They sailed to the island of Crete and various other islands. It was intentional: they needed craft and they needed to take groups of twenty or so at least to get to those places.”

While Everett is not the first to raise the controversial possibility that
H. erectus might have fashioned some sort of seagoing vessel, he believes that such capabilities mean that H. erectus must also have had another skill: language.

Erectus needed language when they were sailing to the island of Flores. They couldn’t have simply caught a ride on a floating log because then they would have been washed out to sea when they hit the current,” said Everett, presenting his thesis at the meeting of the American Association for the Advancement of Science in Austin. “They needed to be able to paddle. And if they paddled they needed to be able to say ‘paddle there’ or ‘don’t paddle.’ You need communication with symbols not just grunts.”
It is pretty clear that Homo erectus hunted, at least in some fashion, could control fire and evidence seems to be accumulating that they hafted spears and, at least late in the range, the European variant set up rudimentary complex settlements.

There is, naturally, skepticism that any hominin form prior to Neandertals were sea-going: 
But others say that there is little evidence that H. erectus was a sophisticated seafarer, let alone had a language. “I don’t accept that, for example, [Homo] erectus must have had boats to get to Flores,” said Chris Stringer, head of human origins at the Natural History Museum in London. “Tsunamis could have moved early humans on rafts of vegetation.”
Before dismissing that idea out of hand, remember that it is the best one going to explain how the New World Monkeys got where they are, since Africa and South America had parted ways some 180 million years prior to their arrival.

I think there is likely not enough evidence to know one way or another if Homo erectus could sail the high seas and had speech, although the only skeletal evidence that we have for that part of the anatomy suggests not. 

Thursday, March 08, 2018

A Mistake Rectified

I have been extraordinarily busy the last few weeks and had hoped to post about this at the time.  Ken Ham was invited to speak at the University of Central Oklahoma.  I have no sympathy for anything that Ken Ham either writes or speaks but what happened next was appalling.  After the invitation, pressure was put on the UCO student association by LBGT groups to disinvite him.  LGBT people make up (charitably) 5% of any given population.  Nonetheless, the UCO group in charge, in what is coming to be the typical, spineless response, rolled over and acceded to their demands.  According to school officials this was done independently of campus administration:
“The university may advise, but does not direct, the activities of [University of Central Oklahoma Student Association],” Johnson wrote. “In fact, in the spirit of the UCO policy on freedom of expression, the university President, Provost and the Vice President of Student Affairs supported and did not deny the proposal to bring Mr. Ham to campus to encourage conversation and debate of diverse perspectives. This was prior to UCOSA’s cancellation of the invitation to Mr. Ham.”
More information came out by way of student association president, Stockton Duvall:
He also said he had been bullied by “a very vocal group on campus that has little tolerance for opposing viewpoints.” Duvall did not specifically cite LGBT activists in his memo.
But according to emails obtained by Todd Starnes of Fox News, LGBT activists played a role.
“We are currently getting bombarded with complaints from our LGBT community about Ken Ham speaking on our campus,” Duvall wrote in an email to Answers in Genesis.
This ought to be simple. If you don't like what the speaker is saying, don't go.  It has been an interesting study in cultural norms to watch the LGBT community go from asking for tolerance to demanding tolerance to, now, demanding endorsement of their views and behaviors.  As far as they are concerned, it is now no longer okay to have a view that doesn't fit with the gay agenda and people who's views don't align shouldn't be allowed to speak. That the student government association obliged them is disgraceful.

But then this happened:
The University of Central Oklahoma (UCO) has decided to re-invite Christian creationist Ken Ham to present his views at the institution, after he was dis-invited last week.

The decision has been celebrated by some on the campus as a step forward for 'free speech', according to KOKO News 5. Ham's perhaps surprising re-invitation stands out in UK and US student culture, where the 'no-platforming' of controversial speakers has become more common.
Kudos to pastor Paul Blair of Fairview Baptist Church for leading the charge to get Ham re-invited. As much as I don't agree with Ham, I have no patience or sympathy with liberal fascism or bullies.

Thursday, February 15, 2018

Ted Davis Waxes Theological, Todd Wood Responds

Ted Davis, like the rest of us, is tired of how the origins debate is playing out between mainstream and non-mainstream science.  He has great praise for those that display clear-headed thinking on both sides in the debate such as Michael Ruse and Todd Wood.  He writes:
I also tip my hat to YEC proponents Todd Wood and Paul Nelson. Each was featured in the YEC film, Is Genesis History?, but neither dismisses proponents of EC with the back of his hand. They both have the courage and conviction to seek the truth, even if takes them places where their creationist friends don’t want them to go. For example, on the same day the film was released, Dr. Nelson dissented from how his ideas were presented in the film. Dr. Wood didn’t do that, but he does candidly admit elsewhere that “Evolution is not a theory in crisis,” that “it is not teetering on the verge of collapse,” nor has it “failed as a scientific explanation.” He finds “gobs and gobs” of evidence for evolution,” denies that it is “just speculation or a faith choice or an assumption or a religion,” affirms that it “has amazing explanatory power,” and frankly says, “There is no conspiracy to hide the truth about the failure of evolution. There has really been no failure of evolution as a scientific theory. It works, and it works well.”
I am quite sure that this last quote will haunt Todd Wood to the grave because most evolutionary creationists (including myself) keep it in their back pocket. Wood has taken on some heavy hitters who have misused science and has done so in an honest and thoughtful way and he has truly striven to understand biodiversity as it pertains to his way of thinking. Furthermore, unlike many in the young earth creationist camp, his posts are free of invective and insult.  For these things and others, he should be commended.

Davis continues:
There’s always the danger than one can overplay one’s hand, or forget that those who see things differently are also made in the image of God. Sometimes, one’s opponents in a public disagreement really are mean-spirited, arrogant, or intellectually dishonest, tempting one to respond in kind. In such situations, do your best to take the high road. Stick with the facts, spell out why you hold different opinions, and be fair to ideas defended by others, even when you strongly disagree: no one has a monopoly on truth. Intellectual honesty and humility do not imply cowardice or lack of commitment to the Gospel. 
This is something I am often guilty of. I find it all too easy to take a blowtorch to the writings of Answers in Genesis in a nasty way, typically because I am writing in anger.  This often happens when I discover a post or article in which it is clear that the person writing the article has little knowledge of the subject about which they write and their tone is insulting or condescending.  It is all too easy to open up both barrels. He finishes with an admonition to avoid indoctrination:
Individual Christians have every right to think for themselves, without being browbeaten into submission by fear, accused of holding dangerous views simply for favoring a different interpretation of Genesis, or publicly shamed as intellectual cowards for accepting consensus science.
There is a great danger in taking the attitude that if two people have a disagreement about something, that one of them is not in the spirit. This behavior results in arrogance, haughtiness, broken relationships and lots of finger-pointing. We are all guilty of sin, especially the sin of self-righteousness.

Todd Wood responds by adding another way that he would like to see the debate change: less of “diagnosing the enemy”: 
There's two big problems I see with Diagnosing the Enemy. First of all, it's just a profoundly arrogant thing to do. How can anyone seriously think that reading a Facebook comment or blog article would actually reveal all the intricacies and complexities of human thought? Some days, I can barely put two words together, and you think that's going to actually reveal the inner workings of my mind and years of study and research and prayer and thought?

Also arrogant is the ulterior motive of Diagnosing the Enemy: I have the cure. Because, let's face it, diagnosing a problem isn't really the point, right? The point is: if only my enemy would watch my video or read my book or do what I tell them, then everything would be fine. Because not only can I diagnose your problem by engaging in a superficial reading of superficial comments, I'm the guy who's gonna cure you! When you think about it like that, it's obviously and embarrassingly silly, but it still doesn't stop us from reading certain triggers and sticking people in that pigeonhole.

Which brings me to the second big problem: It's dehumanizing. Instead of complex people with complex thoughts and attitudes and personalities, we reduce our enemies to one simplistic issue. There aren't just ideas out there that float around having battles by themselves. Ideas are held by real people with real personalities, and histories, and values, and fears. And all of that immensely complicated personality gets entangled with the way we think about the world and our faith. When disagreements pop up, though, these people for whom Christ died suddenly become defined by one perceived "defect."
I am of two minds about this response. It is certainly correct that people are complex and that a single blog post or Bookface post does not remotely capture their complexity.  As noted above, it is all too easy to fire off a response to a post that you know has gotten some basic information wrong.

The problem is that when an entire body of work of an organization continually misrepresents science and the authors of that body of work show absolutely no interest in correcting this misinformation, a response is necessary. When an entire body of work is continually scientifically inaccurate, it begins to inform about the people who are producing it.  In short, at least on one level, it makes it possible to “diagnose the enemy.”

 If you read all of the posts on my blog or my writings on BioLogos, you would get a pretty good idea of what I think about science and theology. It might even be possible to “diagnose” me a bit. To be sure, you would not have insight into what I think about abortion, gun control or how good a father I am to my children, but it would be pretty clear that I am a card-carrying evolutionary creationist.

Davis's post is a clarion call for both sides to take the high road.  That is often hard to do when you are being called “evil, stupid evolutionists” and you know that what they have written is just plain false.
Wood remarks that it is disheartening to see BioLogos identified as the “middle ground.” If we are not the middle ground, what are we? We are people who are firmly convinced in the salvation of Jesus Christ and the integrity and primacy of God's word to us.  We are also people who want to understand the universe that God has created, but to do so in an honest, forthright, and scientifically sound way.

Evolutionary creationists are dismissed by atheists such as Richard Dawkins, Jerry Coyne and Sam Harris for believing in fairy tales and being scientifically compromised by their faith.  This is a false charge.  We operate within the scientific framework with the understanding that everything around us is God's handiwork.  We are dismissed by many young earth creationists as being “compromisers” and not taking the bible seriously.  Nothing could be further from the truth.

One of the things that seems to drive this invective is that atheists are convinced the Bible is false and that we are idiots for believing in it.  Young earth creationists are convinced that their understanding of scripture is absolutely correct, beyond a shadow of a doubt.

It is easy enough to understand where the atheists are coming from, since they see nothing beyond the observable universe.   It is the YEC perspective that I find perplexing. It leads to people like Wood, himself, saying about evolutionary creationists that they “ought to know better,” even though, by his own admission, there is a massive amount of evidence for evolution.  Ken Ham takes it a bit further by questioning whether we are, in fact, Christians at all, and that if we pass on the EC perspective to our children, we are endangering their salvation.

Is it possible that Wood and his fellow YEC supporters are correct in their scriptural assessment?  It absolutely is.  Is it possible that we have evolution wrong?  Is it possible that the earth was created six thousand years ago?  Again, it absolutely is.  But the weight of evidence currently doesn't support those positions.  In fact, there is little to no empirical support for them.  Many good, devoted Christians are out there are wrestling with these facts.  To be told that they “ought to know better” than to accept them or that they aren't Christians if they do is insulting.  Further, as noted above, it betrays a troubling aspect of this perspective: the idea that our understanding of scripture is unbiblical. 

Secondary to this is that, in all of the young earth creationist literature that I have read, there is a remarkable lack of self-examination when it comes to scriptural interpretation.  To those who support the young earth model: we might be wrong about our interpretation of scripture, but you might be, also.  For the origins debate to change, there must be an acceptance of this on both sides of the aisle.  Only then will progress be made and name-calling cease.  

Monday, February 12, 2018

Friday, February 02, 2018

Jesuit Review: Creationism Isn't About Science, it’s about theology (and it’s really bad theology).

Eric Sundrup has an editorial in the Jesuit Review about what is wrong with young earth creationism.  He has some very good observations: He begins:
The Creation Museum is a $27 million example of how Christians can lose their way fighting the culture wars. After spending time there this Christmas, I left convinced that as wrong as the museum’s science is, the most frightening driver of its “logic” is an impoverished theology, which is coupled with a desire to win moral arguments. This toxic combination propels devout people into strange and unnecessary battles with modern science.
This is a point that I and many different researchers have made over the years: young earth creationism misses the broader picture. It reduces the majesty, glory and awe of the Bible and the message that God is telling us in favor of a flat, sterile, superficial understanding of the passages in Genesis. He continues:
Mr. Ham’s motivations for founding the museum and its parent organization clearly grew out of the culture wars. Answers in Genesis argues for the inerrancy of the Bible and specifically for a literal interpretation of Genesis because they think this provides them a strong footing in public discussions. And that, I think, is exactly how this group of Christians got lost. They are trying to win moral and theological debates with what look like scientific arguments.

Strangely, in their attempt to provide definitive empirical answers to moral and theological questions, creationists like Mr. Ham have more in common with some of their most strident scientific opponents than with the broader Christian tradition. They are proponents of the strictest form of biblical inerrancy and literalism. And in this mode they are actually advancing a mirror-image of scientism, in which God’s revelation, both in Scripture and in creation, is meant to convey a list of facts.
I think that this is one of the reasons that young people are leaving the church. Not only do they discover that they have been fed bogus science that doesn't stand up to even the barest scrutiny, when they have issues that require them to reach deeply into their faith, there is nothing there, just cold, impersonal facts. 

Mr. Sundrup's analysis is also not so unlike Joel Edmund Anderson's, in that, in his book The Heresy of Ham, Anderson notes that by focusing on science (or their understanding of science, anyway), Ham and other young earth creationists have, like their atheist counterparts, held up science as the ultimate arbiter of faith.  Modern science HAS to conform to the biblical passages.  If it does not, we are all lost.  This is nonsense for one simple reason: if biblical scripture in Genesis conforms to our understanding of 21st century science, then they are necessarily out of step with 20th century science, 19th century science, 18th century science and so on.  Since young earth creationist arguments don't change (except to move the goalposts), every new scientific discovery has to be shoehorned, manipulated, mangled and adjusted to fit the prevailing narrative. Scientific integrity be damned.  It never occurs to them that the narrative, itself might be wrong.

Indian Site of Attirampakkam Pushes Middle Palaeolithic of India Back to 385 Kya

Great Googlymoogly!  Fresh on the heels of the discovery of the Misliya site (upcoming BioLogos post) that the Middle Palaeolithic Levallois technology was present in Israel as early as 194 thousand years ago, we now have news from India that places the emergence of the same technology as early as 385 thousand years ago.  From Malcolm Ritter at the site PhysOrg:
Homo sapiens arose in Africa at least 300,000 years ago and left to colonize the globe. Scientists think there were several dispersals from Africa, not all equally successful. Last week's report of a human jaw showed some members of our species had reached Israel by 177,000 to 194,000 years ago.

Now comes a discovery in India of stone tools, showing a style that has been associated elsewhere with our species. They were fashioned from 385,000 years ago to 172,000 years ago, showing evidence of continuity and development over that time. That starting point is a lot earlier than scientists generally think Homo sapiens left Africa.
This tool style has also been attributed to Neanderthals and possibly other species. So it's impossible to say whether the tools were made by Homo sapiens or some evolutionary cousin, say researchers who reported the finding Wednesday in the journal Nature.
Nowhere is there any indication that modern humans are associated with the tools at Attirampakkam (ATM). In fact, there are no hominin remains whatsoever at ATM. The Indian subcontinent has always had a paucity of human remains, the most notable of which is the Narmada Homo erectus cranium.  In Europe, the Levallois technology, which also shows up at ATM, is almost exclusively associated with Neandertals and in the Levant, at the Skhul, Qafzeh, Tabun and Amud sites in the Mt. Carmel region, it is used by both Neandertals and early moderns. Consequently, while someone was using early Middle Palaeolithic tools at ATM, we don't know who.

What is incredibly striking about the ATM site is that, from 385 ky down to 172 ky, there is continuous technological evolution, beginning with what the describers call the “terminal Acheulean,” through a punch flake industry with points, to knives.  Another point made by the authors is that this Middle Palaeolithic industry appears and flourishes during a time where other sites in India are still using Acheulean technology.  This suggests “that spatial variability among Palaeolithic cultural sequences is larger than previously thought.”  From the Nature article1:
The behavioural transformations that mark the advent of the Indian Middle Palaeolithic at ATM are summarized by the following diagnostic features: the obsolescence of Acheulian large-flake reduction sequences, with a directional shift towards smaller tool components; the adoption and continuance of Levallois recurrent and preferential strategies; a gradual intensification of blade reduction; and an increased use of finer grained quartzite during phase II than during A gradual discontinuation of biface use—which becomes definite at ATM after approximately 172 ± 41 ka—has been reported at other Middle Palaeolithic and Middle Stone Age sites worldwide (see Supplementary Information and references therein).
This is an astounding find for so many reasons. It establishes the appearance of the Levallois technology, one we know originated in Africa, outside Africa over 150 thousand years earlier than we thought. This is a technology that was considered to have originated some 400 thousand years ago. We may now have to revise this date further into the past.

It shows a clear progression of human cultural evolution, from the late Acheulean hand axes, through Middle Palaeolithic Levallois technology to a more blade-oriented technology.  Sadly, it appears as though the site began to fall into disuse and the sequence stops cold around 74 kya.  This is not surprising since it coincides with the Toba supervolcano eruption in Indonesia.  Nonetheless, as the authors point out, it suggests multiple migrations out of Africa of first archaic Homo sapiens, then modern Homo sapiens, such as those in Misliya and that these groups interacted with the Archaic hominins they encountered along the way.

1Akhilesh, K., Pappu, S., Rajapara, H. M., Gunnell, Y., Shukla, A. D., & Singhvi, A. K. (2018). Early Middle Palaeolithic culture in India around 385–172 ka reframes Out of Africa models. Nature, 554, 97. https://doi.org/10.1038/nature25444

Friday, January 26, 2018

Just When You Had Forgotten About Adnan Oktar...

Adnan Oktar, otherwise known as Harun Yahya is back in the news.  The Hurriyet Daily News recounts the lurid tale:
An Istanbul court has issued a temporary restraining order against controversial TV personality Adnan Oktar and Gülperi Koçak, the mother of two young women, after a father claimed his two daughters were “forced” to be on Oktar’s program.

The Istanbul Anatolian 20th Family Court ruled for Oktar, known abroad as Harun Yahya, and Koçak to stay away from the 19-year-old and 17-year-old women for six months.

The court ruling came after the father, who lives in Austria, had not heard from his two daughters for a long time. The young women were then spotted on Oktar’s show.

Adnan, who has been described as the “most notorious cult leader in Turkey,” credits himself as a creationist and has written numerous books on the subject. On his TV program, he sits around with a group of plastic surgery-enhanced women, who he refers to as his “kittens,” discussing religion and social incidents.
Oktar, if you will remember, was responsible for sending out, unsolicited, copies of his anti-evolution book to hundreds of academic researchers.  I have posted several pieces over the years on this mercurial, flamboyant personality, including several interviews.  His books are, of course, worthless and, according to one source, often plagiarized.  Still, it is is amusing to see this larger-than-life figure at work. 

Thursday, January 25, 2018

Meanwhile, Over in Scotland...

Scotland seems to be having its own experiences with young earth creationism.  From Paul Hutcheon of the Sunday Herald:
A MEDICAL doctor described as one of Europe’s most active creationists has been reappointed to sit on the education committee of South Lanarkshire council.

Dr Nagy Iskander, who has claimed that a key tenet of evolution is “really illogical”, will be allowed to vote at meetings even though he is unelected.

Gordon MacRae, Chief Executive of Humanist Society Scotland, said: “Parents will be disturbed that unelected and unaccountable religious representatives from fringe groups continue to take decisions on their children's education.”

Local authorities are legally required to appoint three members, representing churches, to their education committees. In practice, the three individuals have equal standing to councillors but they are not accountable to voters.

A bid by Green MSP John Finnie to scrap the system in the last parliamentary term fizzled out and unelected religious figures maintain their privileged role.
This is what happens when you elect people to an education committee who have no background or interest in science.  In order to be on the education committee, new nominees should have to pass a basic test in science.  It is pretty clear from reading the rest of the article that Mr. Iskander has absolutely no idea what evolution is.  That doesn't seem to stop him (or anyone else for that matter) from having strong opinions on it. 

Monday, January 22, 2018

Meanwhile, Over in India...

There has been swift reaction to the statement of India's Union human resource development minister Satyapal Singh’s remarks that evolution is not a scientific theory and should not be taught in India's schools.  He also wrote that the theory of evolution had been disproved over thirty years ago and that we did not evolve from monkeys.  The Wire staff writes:
Singh had made his claims when he was at the All India Vaidik Sammelan, Aurangabad, Maharashtra, on January 20. Shortly after, Ram Madhav, the national secretary of the Bharatiya Janata Party, issued a tweet in support of Singh and drawing his followers’ attention to a campaign organised by supporters of the idea of ‘intelligent design’ to cast doubt on the popular theory bearing Darwin’s name.
Reaction was swift. Scientists produced and circulated the following (in part):
We, the Scientists, science communicators and scientifically oriented members of public, are deeply pained by your claim. It is factually incorrect to state that the evolutionary principle has been rejected by the scientific community. On the contrary, every new discovery adds support to Darwin’s insights. One should also note that it is no longer merely a mechanism for organic evolution, but several other evolutionary phenomena in nature. Statements such as ‘humans did / did not evolve from monkeys’ is an overly simplistic and misleading representation of evolution. There is plentiful and undeniable scientific evidence to the fact that humans and the other great apes and monkeys had a common ancestor.

You have also supposedly claimed that Vedas contain answers to all questions. Such an exaggerated claim cannot be substantiated with the evidence available and is an insult to the genuine research work on history of Indian scientific traditions. Vedic traditions through the Mimamsa discipline teach us ways of analysing Vedas through rationality and logical reasoning. Your claims are at odds with the very traditions you claim to uphold.

When a minister working for Human Resource Development in the country makes such claims, it harms the scientific community’s efforts to propagate scientific thoughts and rationality through critical education and modern scientific research. It also diminishes the image of the country at the global level and reduces faith of the international historical research community in the genuine research by the Indian researchers.

Therefore, we urge you to retract the reported speech at the All India [Vaidik] Sammelan with immediate effect and issue a clarification about the Ministry’s policy towards teaching the theory of evolution.
Singh stated that no Veddic writer has ever seen an ape turn into a man, therefore evolution did not happen. The sheer ignorance of the evolutionary process in this statement is so overwhelming that it is difficult to know how to correct it.That is is religiously-based is not a surprise. 

Aside: I have often thought to issue a challenge to young earth creationists of all stripes.  The challenge is this: find me a person who is firmly convinced that evolutionary theory is wrong and that the earth was created six thousand years ago...but who is a confirmed atheist.  This would be someone who is convinced of these ideas, based on what they see as the scientific evidence for them, AND that there is absolutely no God.  Every argument that I have ever seen promoting a young earth and no evolution has been religiously-based, whether it be Christian, Islamic, Veddic or other less well-known groups. 

Go on.  I dare ya..  If this person can be found,  I will contribute $25 to Answers in Genesis. 

Thursday, January 11, 2018

"They Are Digging in the Wrong Place"

Bodie Hodge has a post on the AiG website that is nothing short of astounding.  AiG is, once again, moving the goalposts.  And who is Bodie Hodge?  He is, according to the site: "A speaker, writer, and researcher for Answers in Genesis, Bodie Hodge has a master’s degree in mechanical engineering from Southern Illinois University at Carbondale."  Hodge writes:
Each year there are many headlines, books, technical articles, and videos about another supposed missing link—a supposed link between a land mammal and whale, a dinosaur and bird, an ape and human, and so forth. Usually, these are quite easy to refute by anatomical features.

For example, alleged missing links turn out to be anything but—for example, either ape, human, or a fake (e.g., Piltdown man) or dinosaur, bird, or a fake (e.g., Archaeoraptor).

Nevertheless, these alleged missing links rarely make creationists cringe. I think it frustrates some of the evolutionists because they think they have found some sort of knock-out evidence that they interpret as support for evolution. But creationists rarely bat an eye.

Well, I’m going to let you in on a secret as to why creationists rarely take notice of these alleged missing links. It is because the evolutionists are digging in the wrong place—just like the bad guys in Indiana Jones. When you don’t have the correct information, you can miss the mark significantly.
So evolutionists are just like "the bad guys" in Raiders of the Lost Ark.  Did you catch that?  A casual trip through the fossil record indicates that there are, in fact, many, many transitional forms present.  We now have very detailed sequences from Devonian crossopterygians to early tetrapods, from land mammals to whales, from maniraptoran dinosaurs to birds and, of course, from late Miocene/early Pliocene apes to humans.

But this isn't even the central focus of his post. First, he lists the conventional geological stratigraphy.  He bungles this early on.  He writes: "In a general sense, evolutionists look for alleged dinosaur-to-bird missing links in the Cretaceous and Paleocene (bolded)."  Wrong.  The dinosaur-to-bird sequence dates to the late Jurassic.  Furthermore, the presence of feathers on non-avian dinosaurs suggests that feathers evolved even before the late Jurassic.  By the early Cretaceous, birds were numerous.  The transition had long since ended by the Palaeocene.  Had he done any study of the transition from dinosaurs to birds, he would have known this.

He then writes:
But here is the problem. The rock layers from Cambrian to Miocene—at least mapped in the mountains of Ararat (Genesis 8:4)—were from the Flood.2 Miocene and Eocene rock is intricately part of the makeup of the mountains of Ararat, as is Cretaceous and Triassic (many times inverted, lying above the Miocene and Eocene). Since that time, the upper strata are post-Flood strata—such as Ice Age layers and recent volcanic flows. I understand creationists debate about tertiary sediment (Paleocene through Miocene) and encourage you study this further.
He gives absolutely no justification for this viewpoint. No evidence is presented indicating why pre-Pliocene sediments are flood and Pliocene sediments on up are not.  There is no event to mark this transition, no sedimentary layer that is distinctive.

Nothing. He simply says that it is so, therefore it is. It gets worse:
So when evolutionists say they found a transitional form between an ape and a human in Pliocene rock, creationists hardly flinch. Evolutionists are looking at the rock strata and the age of the earth incorrectly because humans were around long before that rock was ever laid down! Furthermore, humans existed when the Cambrian rock was laid down during the Flood. To go one more step, mankind had dominated the earth for over 1,600 years before the Cambrian rock was laid down!

When someone says that they found a transitional form between a dinosaur and a bird in the Paleocene, again, creationists hardly think twice. Both specimens died the same year in the same Flood and are not related. This is why finding feathers in the rock layers “before the dinosaurs” is not a problem for creationists.4 Nor is it a problem when we find theropod dinosaurs (which supposedly evolved into birds in the evolutionary story) that had eaten birds in lower Cretaceous rock.5

Birds were made on Day Five, which is a day before the dinosaurs; land animals, like dinosaurs, were made on Day Six. Having both buried in Flood sediment isn’t a big deal.
So many questions...

  • If humans were around before the rocks were laid down, how is it that we find no humans at the base of the geological/flood column?  In fact, why aren't human remains found throughout the column, if they predate the Cambrian?
  • How is it that all of the fossil species that are supposed to be in flood deposits are perfectly sorted, even to the point of brachipods being sorted by crinulation number and trilobites being sorted  by number of compound eye segments?  What about the detailed fossil sequences mentioned above? 
  • if humans had ship-building capacity during the time of Noah and existed in towns and settlements, why is there no evidence of this at the bottom of the geological column?
  • If humans did, in fact, predate the Cambrian, why do we find a detailed, clear sequence from prehuman hominoids through human precursors to archaic and them modern humans beginning in the Pliocene?  
  • If the sediments from the Miocene back to the Precambrian reflect flood deposits, why do we find the largest land mammals, dinosaurs three quarters of the way up the column, when they should have sunk to the bottom?  
  • If the sediments from the Miocene back to the Precambrian reflect flood deposits, why do we find features throughout the geological record that could only have happened on the surface, such as rain drops, footprints, hatched dinosaur eggs, cave systems, sand dunes, burned forests, swamps, etc. 
So why aren't any of these things problems for the creationists?
Biblical creationists presuppose the Bible’s truth and subsequently the true history of the earth—including Noah’s Flood. Evolutionists have presuppositions too, albeit, false ones, but presuppositions nonetheless. This is why when evolutionists look at Flood rock they unwittingly believe that the rock was actually laid down slowly and gradually over long ages. I suggest they have been indoctrinated to believe such stories as gradual rock accumulation over millions of years which has never been observed or repeated. Thus, the concept of millions of years is not in the realm of science but interpretation.
The reason that "evolutionists" do this is because every bit of the palaeontological and geological evidence points to a long depositional history with evolutionary diversity.  It is not a matter of indoctrination.  It is a matter of going where the evidence leads.  One might reasonably argue that if you put on young earth creationist blinders, you do not see the vast stretches of time and the changes that the earth has gone through in its long history, but, instead, a flat earth. 

It is common to find nonsense on the AiG site, but this rises to a new level of inanity. This post is terribly written, incorrect, pompous and insulting.  The writer provides no evidence for the position he takes, insults the hard work of scientists who have spent decades piecing together the geological and fossil records, and betrays complete ignorance of basic geology and palaentology.  It is hard to be charitable to Mr. Hodge, who plainly knows nothing of which he writes and, as a result, produces pure drivel. 
 

Tuesday, January 09, 2018

New Ancestral Native American Population Discovered: The YEC Interpretation

On the heels of the discovery of the new ancestral Native American DNA, several young earth creationists have claimed that the discovery supports the global flood model and a young earth.

Uh huh.

From the Baptist Press:
After scientists extracted the DNA, they dated it to approximately 11,500 years ago, according to common evolutionary dating methods, and discovered commonalties between the harvested genome and the DNA of modern Native Americans. Researchers also found the ancient infant girl had ancestors in East Asia some 35,000 years ago according to evolutionary dating methods.

The finding marks the second oldest human genome ever discovered in North America, The New York Times reported.

Nathaniel Jeanson, a Harvard-trained research biologist with Answers in Genesis (AiG), told Baptist Press the dating of the Alaska DNA seems to be inaccurate. But other details of the find, he noted, corroborate the account in Genesis 11 of mass human migration following attempted construction of the Tower of Babel.

The Nature study, Jeanson said, is “more evidence for people in the Americas from Asia -- East Asia, Central Asia" and "is consistent with Scripture.”
It is also consistent with every single model of population movement into the New World since the 1970s. It may be the oldest DNA found in the New World, but it still supports all of the previous models.  And, on what basis is the dating wrong?  Jeanson is willing to take everything else at face value, including the idea that this represents the first peopling of the New World.

How would he know this if the dates are wrong?  Again, from the article:
Kurt Wise, a Southern Baptist and Harvard-trained paleontologist, told BP in written comments the 11,500 "radiocarbon years" cited by Nature "amount to many fewer true (chronological) years (probably closer to 4,000-4,100 years)."

"If one considers the ages" given by Nature “in relative terms, the new findings are consistent with a dispersion of humans from Babel,” said Wise, professor of natural history at Truett McConnell University, “people making it to western-most Europe, southern-most Africa, and eastern-most Asia first, then coming through the Bering Strait from western Asia into what is now Alaska ... and spreading from there into northern, central, and southern South America.

“So, these remains,” Wise said, "are most probably of a population of people spreading out from Babel” -- a reality he termed “rather exciting!”
How does one take the dates ”in relative terms?”  That is why they call it absolute dating.  Relative dating is when something is older than something else based on its position in the geological column.   Additionally, the reason that we can identify it as a population that is ancestral to later Native Americans (some of them, anyway) is because of the genetic similarities to very-eastern Siberian and north Chinese populations that existed some 30 to 40 thousand years ago in those areas and who's descendants migrated over the Bering Strait.

If the flood really had happened sometime between 2400 and 2500 B.C., there would be no such genetic diversity.  Everyone would have very similar DNA and it would be traceable to some area around northeastern Turkey/southern Armenia/Black Sea.  Yet those people are very distinct, genetically from east Asians and Europeans. 

In short, this DNA strand constitutes no evidence, whatsoever, for a migration of people after the Noachian Flood.   

Friday, January 05, 2018

New Ancestral Native American Population Discovered

Science Alerts is running a story about genetic research done to reveal ancestral populations.  Peter Dockrill writes:
Sunrise girl-child ("Xach'itee'aanenh T'eede Gaay") lived some 11,500 years ago in what is now called Alaska, and her ancient DNA reveals not only the origins of Native American society, but reminds the world of a whole population of people forgotten by history millennia ago.

"We didn't know this population existed," says anthropologist Ben Potter from the University of Alaska Fairbanks.

"It would be difficult to overstate the importance of this newly revealed people to our understanding of how ancient populations came to inhabit the Americas."
When I was in graduate school, the common understanding was that Meadowcroft Rockshelter was occupied as early as 23ky. Although this date was disputed, on the basis of presumed groundwater contamination, a paper by Paul Goldberg and Trina Arpin, from 1999, seems to confirm the early date. Meadowcroft is in Pennsylvania and likely was within 50 miles of the maximum edge of the Cordilleran Ice sheet.

Still, this is a neat find.

Tuesday, January 02, 2018

Ken Ham's Comments on SES National Conference on Christian Apologetics Called "Unhelpful"

Ken Ham attacking other Christians?  Gee, who knew?  An article that is running in the Christian Post recounts an exchange between Ham and Southern Evangelical Seminary president emeritus Richard Howe.  The irony is that they are both young-earth creationists.  Michael Gryboski writes:
Ham was part of a dialogue event at the SES National Conference on Christian Apologetics in October, titled "God's Word or Man's Word: From Where Must Apologetics Begin?" He insisted that unwavering belief in God's Word must be the beginning of any apologetics discussion and criticized SES Professor Emeritus Richard Howe for arguing that a defense of the faith can begin with a discussion of natural law.

Ham said in his assessment of the event that Howe "seemed rather weak in his convictions and not very knowledgeable of the biblical and scientific arguments in favor of young-earth creation. And he is very opposed to the way that I, and AiG in general, defend Genesis."

SES President Richard Land, calling the young-earth creationist's comments "unfair and unhelpful," asserted in a statement, "One will be hard pressed to find a more conservative and steadfast seminary dedicated to teaching and defending the foundational doctrines of the historic Christian faith. SES is one of the last bastions of a robust view of biblical inerrancy."
At issue, apparently, is the way in which the Bible is used to determine truth. The suppositional, or classical model supporters argue that one must “marshall” evidence for a position on whether or not the Bible is true. The presuppositional model supporters argue that the Bible is de facto true and that this perspective precedes any understanding or reasoning about the nature of reality. Ham takes the latter position.  Gryboski further writes:
“Compromise positions on Genesis are permeating our seminaries and other Christian institutions. Academics have come up with all sorts of fanciful ways to twist the Scriptures to try to fit in millions of years,” wrote Ham.

Land clarified that all SES trustees, faculty, and staff, which include both young-earth and old-earth creationists, believe the Bible is infallible and inerrant. The issue of the age of the earth — which was not the focus of the conference dialogue — is a matter of interpretation, he noted.

Despite Ham's letter, Land said SES is “committed to furthering this dialogue,” so much so that they have extended an invitation to Ham to participate in a formal debate at next year's conference.
There is a large, unspoken philosophical problem with the presuppositional model in what Ken Ham writes, and it is this: adopting the presuppositional model ‘presupposes’ that you not only have the correct translation of the Bible but that you have correctly interpreted every single passage, down to the last word. A cursory check of the literature, past and present strongly suggests that such a task is beyond that of mortal man. The fact that there were varied interpretations of the the creation account even in the first couple of centuries after the time of Christ drives this home.  1 Corinthians 13:12 admonishes us thus:
“For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.” (KJV)
Howe refers to this in his statement:
“We should all remember that our understanding of God's Word never carries the same authority as God's Word itself does. Believers should always approach God's Word with humility and never equate their understanding of God's Word as being as comprehensive or as infallible as God's Word itself is," he stated. "[W]e believe that the question of the age of the earth is a question of what the Bible is saying not what the Bible is.”
And herein lies the heart of Ham's arrogance: in his mind, He has done these things.

Ham believes he has correctly interpreted the bible to the point where he now feels perfectly at home criticizing anyone who does not do so exactly the same way he does. Ancient and current commentaries be hanged. In his mind, they are simply wrong.

There is no humility in this position.  This arrogance allows him to say that other Christians are not Christians and thus, to preach heresy.  Just like the kerfuffle about the Great Home School convention, Peter Enns was, in Ham's mind, completely wrong and needed to be silenced.  This led the organizers to call his actions “unChristian and sinful.”

As Dan Wilkinson wrote, back in 2014, in response to Ham's assertion that people were leaving the church because of evolution:
No, Mr. Ham, no one’s leaving the church because evolution shows that “the Bible could not be trusted.”

Mr. Ham, they’re leaving the church because of people like you: people who fervently create walls, erect barriers, establish rigid rules for what one must believe in order to be a Christian. They’re leaving the church because your version of Christianity has nothing whatsoever to do with right practice, and everything to do with “right” belief. They’re leaving the church because by essentially demonizing everyone who doesn’t agree with you, you’ve made believing in Young Earth Creationism* more important than Jesus’ explicit explicit commandment to love God and neighbor.
With Ken Ham comes all kinds of mischief, controversy, ill-will and self-righteousness.  His actions are the very opposite of “Christ-like.”

Monday, January 01, 2018

A New Darwin Biography Gets Fisked

Jerry Coyne, a somewhat outspoken atheist and author of the book Why Evolution is True, has written a review of a new book on Darwin titled Charles Darwin, Victorian Mythmaker by A.N. Wilson.  Coyne is baffled:
Given that many of Wilson’s earlier biographies have been admired for their style and insight, and not criticized for pervasive errors, this new project is baffling. Where Darwin’s other biographers have seen a sensitive and kindly man, a scrupulous scientist who willingly credited his predecessors, Wilson finds a greedy “self-mythologizer” desperate to become famous, even if it required ignoring or plagiarizing his forerunners and fellow naturalists.
In every portrayal of Darwin I have ever read, he is constantly generous, respectful, and professional. Coyne suggests that the problem does not lie with Darwin but with Wilson, who evidently makes many errors in this book:
In the most embarrassing error, Wilson claims that the first 50 pages of an important Darwin notebook have been lost forever, asserting that Darwin destroyed them to hide his intellectual cribbing from his contemporary Edward Blyth. In reality, Darwin simply placed those pages in a folder for later use, and they can easily be found online. Whatever Wilson was doing during the five years he spent researching and writing this book, it bears little relation to what we call “scholarship.”
According to Coyne, the same problem that lies at the heart of the book is the same philosophical problem that affects every anti-evolutionist: Darwin simply had to be incorrect about his ideas.  He simply had to be:
Why the sustained animus against Darwin? I think Wilson’s issue is not really Darwin but his ideas. “Darwin was wrong,” is how he opens the book, referring to the theory of evolution. Wilson plainly dislikes evolutionary biology, but, lacking scientific credentials, is not in a position to provide a thorough scientific critique of the field. Instead, he seems to have written a biography — a task he is at least in principle qualified for, having written 20 books on history — as a platform to launch an assault on evolution. Darwin’s character is simply collateral damage.
This kind of book is frustrating on so many levels.  The author has no knowledge of the subject matter so he makes unsophisticated attacks, and he is philosophically opposed to the subject matter so he deems it “bad.”

I once likened this sort of thing to bugs and a bug zapper.  Evolution is such a tempting target that even people that are absolutely unqualified to address it simply can't stay away.  We have seen this with Nancy Pearcey, Eric Metaxas, and others.  It is unfortunate that the reading public find these people informative on the topic.  As someone (probably not Mark Twain) once said: “A lie can travel half way around the world while the truth is putting on its shoes.”  Are these people absolutely lying?  Maybe not, but if they continue to repeat the same misinformation time and time again, even after they have been corrected, what difference does it make?

Thursday, December 28, 2017

Has Noah's Ark Been Found?

Short answer: no.  But a story in Web Top News would have you believing otherwise. 
More than 100 researchers from around the world recently came together as part of a three-day international symposium on Mt Ararat and Noah’s Ark in Agrı in Turkey to see if they can find the ark’s final resting place.

“My purpose is to visit the sites around the mountain to find clues about catastrophic events in the past,” said Professor Raul Esperante from the Seventh-day Adventist Church-sponsored Geoscience Research Institute.

Their website states their mission is to “discover and share an understanding of nature and its relationship with the Biblical revelation of the Creator God”.

In 2010, a group of Chinese and Turkish evangelical explorers set out to explore the region and find the vessel’s remains.

After a few weeks, they claimed to have found wooden specimens from an ark-like structure 4000m up the mountain.

The mountain is the highest peak in Turkey, standing more than 5100 metres tall.

The team claimed they carbon dated the wood, which proved it was 4800 years old, around the time the ark is said to have been afloat.
Some are not convinced:
Nicholas Purcell, a lecturer in ancient history at Oxford University told MailOnline the claims were the “usual nonsense”.

“If floodwaters covered Eurasia 12,000ft [3700m] deep in 2800BC, how did the complex societies of Egypt and Mesopotamia, already many centuries old, keep right on regardless?”
One of the things that is pointed out by conventional geologists (and by young-earth creationist Andrew Snelling, later in the article) is that Mt. Ararat was a volcano and, if all of the vulcanism that is evident in the geological record really did occur during the year-long flood, it is difficult to imagine how the Ark would have been able to land on Mt. Ararat, which would surely have still been scalding hot. There are other problems with the idea that the vulcanism all occurred in one year but this is not the place for that.

It has always intrigued me why explorer after explorer assumes that the ark is specifically on this mountain.  There is no biblical mandate that the ark has to be here.  In fact, it plainly states that the ark came to rest in the "mountains of Urartu," which is an area of some 400,000 square miles, any one of which would have been just as likely.

But all of this sidesteps the other major problem:
Talking after the initial claims in 2010, Mike Pitt, a British archaeologist, said the evangelical explorers had yet to produce compelling evidence.

He said: “If there had been a flood capable of lifting a huge ship 4km up the side of a mountain 4800 years ago, I think there would be substantial geological evidence for this flood around the world. And there isn’t.”
It is not just that there is no evidence for a world-wide flood, there is a mountain of evidence suggesting that something like that could not have happened.

Goin' on another snipe hunt.  

Friday, December 22, 2017

Newsweek Dabbles in Young Earth Creationism

Kastalia Medrano, of Newsweek, has written a post describing the discovery of a fossilized Antarctic Forest.  The piece starts off innocuously enough:
Scientists announced the discovery of the fossilized trees in Antarctica’s Transantarctic Mountains in November. They believe the forest is the oldest one known to exist in the southern polar region, according to Breaking News Israel. They proposed that the ancient trees preserved a record of a large-scale global die-off event, which raised the planet’s temperature to dangerous extremes and turned its oceans acidic, and ultimately wiped out 95 percent of species on Earth. But they were left with the question of what exactly was the catalyst for those changes.
Then comes the sharp turn:
At least one biblical scholar believes he has the answer: The die-off event was the Great Flood described in the Book of Genesis.

“This discovery should be no surprise to those who take Genesis as literal history,” Tim Clarey, a geologist from the Institute for Creation Research, wrote on the ICR website. “The Bible clearly describes a global flood that affected all land masses—why should Antarctica be an exception?”
The problem, of course, is that the Permian extinction is only one of five mass extinction events, and it is not even the first one. It is the third, behind the Ordovician and late Devonian extinctions.The one that took out the dinosaurs was the late Cretaceous extinction.  Furthermore, there are many, many layers of sediment between each extinction event.  So the question: why would this particular extinction event signify the flood?  Why not the most recent one?  Also, isn't it generally thought by young earth creationists that the ENTIRE geologic column represents the flood deposits?  Clarey does not mention this at all in his column.

Part of the interpretation hinges on the discovery of fossil cells, which are explained by an extremely rapid burial, an explanation that Clarey doesn't buy.

Clarey then received a critique from a biblical scholar, Brent Landau, as Medrano writes: 
If you’re not persuaded by the secular community, take it from the religious community. Brent Landau, a biblical scholar from the University of Texas at Austin, told Newsweek that Clarey is “espousing a form of religiously motivated pseudoscience, and a relatively unsophisticated one at that.”

Landau explained that Young Earth Creationists arrive at the idea that the planet is only 10,000 years old through methods like adding up the ages of people written about in the Book of Genesis, and that there’s no need for religious scholars to take that kind of evidence more seriously than the “vast amount of scientific data” pointing to the Earth being around 4.6 billion years old.

“Notice that he links the destruction in Antarctica to the Flood, but insists that the scientists’ date for this catastrophe of 280 million years ago must be incorrect,” Landau wrote to Newsweek over email.
As Carol Hill pointed out, there simply isn't any defensible evidence for a world-wide flood. Even if the fossilized trees were entombed very rapidly, there are many other natural formations that show clear signs of slow deposition. You simply cannot extrapolate one localized area to the entire world, yet this what young-earth creationists continually do.

Saturday, December 16, 2017

Modern Humans Came Out of Africa Earlier Than Thought and Did So Multiple Times

If you have been studying human evolution, this story is not new.We have suspected for some time that humans migrated out of Africa in waves, beginning with Homo heidelbergensis, up through archaic Homo sapiens and, now, modern Homo sapiens.  As the story notes, there have likely been multiple migrations of Homo sapiens, as well. 

From the story in Science Daily:
A review of recent research on dispersals by early modern humans from Africa to Asia by researchers from the Max Planck Institute for the Science of Human History and the University of Hawai'i at Manoa confirms that the traditional view of a single dispersal of anatomically modern humans out of Africa around 60,000 years ago can no longer be seen as the full story. The analysis, published in the journal Science, reviews the plethora of new discoveries being reported from Asia over the past decade, which were made possible by technological advances and interdisciplinary collaborations, and shows that Homo sapiens reached distant parts of the Asian continent, as well as Near Oceania, much earlier than previously thought. Additionally, evidence that modern humans interbred with other hominins already present in Asia, such as Neanderthals and Denisovans, complicates the evolutionary history of our species.
Here is the graphic from the story:


 
What is only hinted at in the article is that when these waves of moderns came out of Africa, they interbred with the archaic hominins that they encountered. Further, this genome was remarkably stable, since there is genetic evidence that there was at least 500 thousand years of separation between them.Also missing from the story is the range of variation that these hybridizations display.  For example, as noted by the triangle on the map, the Xuchang fossils from China seem to show a mix of modern, Neandertal and late Homo erectus morphologies.  As I noted at the time:
The implications of these skulls are stark: there has been widespread population mixing and regional continuity in Europe and Asia for at least 400 thousand years. Not only did the Neandertals feel enough cultural kinship to mate and have children with these East Asian people, the early modern humans coming out of Africa did, as well.
The other peculiar thing about the graphic is that there seems to be no migration pattern through the strait of Gibraltar. This seems odd since this is likely at least one of the routes that were taken by H. ergaster between 1.5 and 2.0 mya, and since it is thought that the Levallois tool technology comes from the Middle Stone Age of Africa, this would have been a likely route of introduction.  There may have been a barrier of sorts, suggested by the fact that the latest surviving Neandertals are from Spain

Friday, December 15, 2017

Penguin From Hell

Okay, probably not nearly on the level of the Frog From Hell or the Snake From Hell, but coming into contact with a six-foot penguin would be quite something.  From the NPR Story:
An international team of scientists have announced the discovery of a previously unknown species of prehistoric penguin.

The bird waddled around off the east coast of New Zealand between 55 and 60 million years ago. And it was a giant as far as penguins go. The researchers estimate that it probably weighed about 220 pounds and was around 5 feet 10 inches tall.

"That's about as tall as a medium-sized man," says Gerald Mayr, a paleontologist at the Senckenberg Research Institute and Natural History Museum in Franfurt, Germany, and the lead author of the new study published today in Nature Communications. "This particular specimen is one of the largest known fossil penguins."

The largest living penguin, on the other hand, the Emperor penguin, is a good bit shorter — around 4 feet.

The scientists have named the new species Kumimanu biceae, which means 'monster bird' in the Maori language. (Kumi is the name of a monster in Maori mythology and manu means bird.)
Here is the image from the story:

(Image credit: Gerald Mayr)

Friday, November 24, 2017

New Jebel Irhoud Date Causes Rethink of Chinese Dali Skull

Newsweek (Yes, that Newsweek) has a story on the reexamination of the Chinese Dali cranium, in light of the revised dates for the Jebel Irhoud skulls.  Kastalia Medrano writes:
Known as the Dali skull, it was discovered nearly 40 years ago in China’s Shaanxi province. It belonged to a member of the early hominin species Homo erectus. Its facial structure and brain case are intact, despite being dated to around 260,000 years ago. The Dali skull is so old that archaeologists initially didn’t believe it could share features with the modern Homo sapiens.

But Xinzhi Wu of the Chinese Academy of Sciences in Beijing believed that due to the overwhelming physical similarities, Homo erectus must have shared DNA with Homo sapiens. After decades of this idea being dismissed by mainstream academia, Wu and a colleague, Sheela Athreya of Texas A&M University, recently reanalyzed the Dali skull and found it may force us to rewrite our evolutionary history after all. It’s incredibly similar to two separate Homo sapiens skulls previously found in Morocco. “I really wasn’t expecting that,” Athreya told New Scientist.

If we’d found only the Moroccan skulls, and not the Dali skull, it would make sense to keep believing all modern humans evolved in Africa. But the similarities show that early modern humans may not have been genetically isolated from other parts of the world, like what we know today as China.

“I think gene flow could have been multidirectional, so some of the traits seen in Europe or Africa could have originated in Asia,” Athreya told New Scientist.
Okay, now the nuts and bolts.Dali has always been thought to occupy that rarified space between Homo erectus  and early modern Homo sapiens.  It was always thought to be between 200 and 250 kya, and optically-stimulated luminescence dating (a variant of thermoluminescence) places it between 258 and 267 kya.  My analyses of the skull suggested that it was, in no way, shape or form, a modern human but it did not tend to cluster with the Neandertals in terms of head shape.  Athreya and Wu have done an extensive multivariate analysis and conclude (from the article, likely behind a paywall:
When just the facial skeleton is considered, Dali aligns with Middle Paleolithic H. sapiens and is clearly more derived than African or Eurasian Middle Pleistocene Homo. When just the neurocranium is considered, Dali is most similar to African and Eastern Eurasian but not Western European Middle Pleistocene Homo. When both sets of variables are considered together, Dali exhibits a unique morphology that is most closely aligned with the earliest H. sapiens from North Africa and the Levant.

These results add perspective to our previous view of as Dali a “transitional” form between
Chinese H. erectus and H. sapiens. Athough no taxonomic allocation is appropriate at this time for Dali, it appears to represent a population that played a more central role in the origin of Chinese H. sapiens. Dali's affinities can be understood in the context of Wu's Continuity with Hybridization scenario and a braided-stream network model of gene flow. Specifically, we propose that Pleistocene populations in China were shaped by periods of isolated evolutionary change within local lineages at certain times, and gene flow between local lineages or between Eastern and Western Eurasia, and Africa at other times, resulting in contributions being made in different capacities to different regions at different times.
In combination with the Xuchang remains, the reanalysis of this skull suggests that, indeed, there is a long and complex interrelationship between different hominin groups that dates back some 400 thousand years. From the paper:
In the braided-stream network model, evolutionary change in China was the result of a shifting network of gene flow among distinct regional Chinese populations, as well as between Chinese and Western Eurasian populations. These were not isolated evolutionary lineages; gene flow both within China and between Eastern Eurasia, Western Eurasia and Africa was intermittent and could explain the similarities in aspects of the neurocranium found here between Dali and Western Eurasian Middle Pleistocene humans. Gene flow would best be described as a braided stream network with periods of isolated evolutionary change within a local lineage at times, and periods of gene flow between local lineages or paleo-demes at other times, resulting in contributions being made in different capacities to different regions at different times.
It is pretty clear that our simplistic models of Recent African Replacement and Multiregional Evolution need to be reworked. It is becoming more apparent that what we are looking at either a polytypic species with a huge geographical range or a syngamion of related species that intermixed regularly. The Xuchang skulls were, apparently, not unique.

Thursday, November 23, 2017

Flat Earth Convention in North Carolina

Nuts, I wish I could have gone to this. Stephanie Pappas, at Live Science writes:
A conference aimed at disputing the idea that the world is round just wrapped up in North Carolina.  The first-ever 2017 Flat Earth International Conference (FEIC) was held in Raleigh on Nov. 9 and 10, featuring some of the big names in round-Earth denial. Among the speakers were Darryle Marble, who once took a level on a plane to "prove" the Earth doesn't curve; Mark Sargent, the creator of the Flat Earth Clues YouTube Series, who believes all life is enclosed in a "Truman Show"-like dome structure; and Jeran Campanella, a YouTube and online radio personality, who makes flat-Earth, 9/11 Truther and other conspiracy theory videos. [7 Ways to Prove the Earth Is Round]
Apparently, it was quite a smorgasbord of conspiracy theoreticians.  It is always great fun to see how the science is twisted and one can never quite tell if they are serious or not.