The multistep spearmaking practice, documented by researchers in Senegal who spent years gaining the chimpanzees' trust, adds credence to the idea that human forebears fashioned similar tools millions of years ago.
The landmark observation also supports the long-debated proposition that females -- the main makers and users of spears among the Senegalese chimps -- tend to be the innovators and creative problem solvers in primate culture.
Using their hands and teeth, the chimpanzees were repeatedly seen tearing the side branches off long, straight sticks, peeling back the bark and sharpening one end. Then, grasping the weapons in a "power grip," they jabbed them into tree-branch hollows where bush babies -- small, monkeylike mammals -- sleep during the day.
This is a blog detailing the creation/evolution/ID controversy and assorted palaeontological news. I will post news here with running commentary.
Saturday, February 24, 2007
Hard to believe this is the first time we've seen this...
Sorry about the light posting
Thursday, February 15, 2007
Kansas...again
Some scientists and science groups believed the board's latest action was significant because it turned back a subtle attack on evolution that encouraged schools to teach about an evolution "controversy," rather than mandating that creationism or intelligent design be taught. Intelligent design says an intelligent cause is the best way to explain some complex and orderly features of the universe.
The catch is that there is no controversy. From a scientific perspective, there are mountains of evidence supporting both microevolution and macroevolution and no evidence supporting any other model. The ball is in ID's court. If there is a mechanism that can be postulated that would explain current and past biotic diversity, why have they not presented it? You cannot teach a controversy in a vacuum. Teaching the "controversy" is a smokescreen and most scientists can see through it.
The marvels of Modern Medicine
Monday, February 12, 2007
Good ol' Genetics
Thursday, February 08, 2007
Didn't See This Coming
"I did not evolve from Turkana Boy or anything like it," says Bishop Boniface Adoyo, head of Kenya's 35 evangelical denominations, which he claims have 10 million followers. "These sorts of silly views are killing our faith."
Richard Leakey is just as adamant:
"Whether the bishop likes it or not, Turkana Boy is a distant relation of his," Leakey, who founded the museum's prehistory department, told The Associated Press. "The bishop is descended from the apes and these fossils tell how he evolved."
A more conciliatory approach is taken by head of palaeontology at the museum, Emma Mbua:
Mbua, a Protestant, is a little taken aback at the controversy but has no problems reconciling her own faith to the scientific evidence. "Evolution is a fact," adds Mbua, who has run the department for the last five years. "Turkana Boy is our jewel," she said. "For the first time, we will be taking him out of the strong room and showing our heritage to the world."
I am still waiting for a creationist to come along and explain just what, exactly, KNM WT15000 is, since it obviously ain't modern human and just as obviously ain't an ape.Monday, February 05, 2007
First its microcephalic, now its not! Or is it?
While the new technique suggests LB1 was not a microcephalic, it does not rule out that it was not a Homo sapiens.
As evidence of that, Falk points to what she says are several advanced features of LB1's brain that are unlike those of modern humans or any other known hominid species.
"What we have is a little tiny brain that has four features that you can see with your eyes that are advanced and distributed from front to middle to back," Falk said. "In other words, this thing appears to be globally rewired. Those are really advanced features. They're not like humans, they're not like anything.
Some are not convinced:Robert Martin, curator of biological anthropology at the Field Museum in Chicago, is not convinced by the new evidence.
One of his major criticisms has to do with the sample of microcephalic skulls the team used. "They're being a bit naughty about this," Martin said in a telephone interview. "Four of the nine microcephalics were not adults."
Falk's team maintains its inclusion of young skulls is justified because microcephalics are generally believed to achieve maximum cranial capacity by around four years of age. Martin, who criticized a similar comparison done by Falk's team in 2005 as flawed, again disagrees. "What we're saying is LB1 was definitely an adult. If LB1 was a microcephalic, he was one with a mild condition who managed to survive into adulthood," he said. "So the proper comparison is with microcephalics with a mild condition who were adults."
"I don't have any problems with having new hominid species," Martin added. "I just don't think this is one of them."
I am looking forward to how this plays out. We have not seen the last of this controversy, given the significance of the H. floresiensis remains.
Forward into the Palaeocene!
[Jonathan] Bloch recently caught a lucky break when he made the rare discovery of nearly complete skeletons of two plesiadapiform species, now named Ignacius clarkforkensis and Dryomomys szalayi, embedded in limestone outside Yellowstone National Park.
By analyzing the skeletons and comparing them to more than 85 modern and extinct primate species, the researchers showed that plesiadapiforms look a lot more like primates than paleoanthropologists had imagined — and look nothing like flying lemurs, Bloch said.
This is exciting because it addresses the origin of our first precursors at a time when the dinosaurs had finally given way to the mammals. The article goes on to say:
Primates must have acquired their traits gradually, because plesiadapiforms have some, but not all, of the characteristics of later primates, Bloch and Sargis said.
"In the past, people had hypothesized that all of these kinds of primate features evolved as a single complex of features at one time, whereas what we're finding is throughout those first 10 million years of primate evolution, these features were evolving piecemeal, kind of one-by-one, accruing through time," Sargis said.
Bloch and Sargis's skeletal analysis shows that flying lemurs and another modern, non-primate mammal, the tree shrew, are primates' closest living relatives.
DNA studies of all three types of mammals — primates, flying lemurs, and tree shrews — confirm Bloch and Sargis's finding.
"So all three of those groups," Sargis said, "you can trace back to a single common ancestor.
Islamic Creationism
The book's pseudonymous author, a Turk named Harun Yahya ( photo left -- real name: Adnan Oktar), makes a number of astonishing claims -- including that Charles Darwin is "the real source of terrorism." For example, a photo of the 9/11 attacks on the Twin Towers carries a caption reading, "Those who perpetuate terror in the world are in reality the Darwinists. Darwinism is the only philosophy which validates and encourages conflict." Yahya also pretends to portray "the secret links between Darwinism and the bloody ideologies of fascism and communism."
It is creationism with a twist, however:
Contrary to the fundamentalist Christian Creationists in the U.S. who have been attacking the teaching of Darwin's theory of evolution in local school boards and many state legislatures, and demanding with an alarming degree of success that Creationism be taught in the public schools, Yahya's Qur'an-based attack on Darwinism does not claim that the world and those who inhabit it were created only 6,000 years ago. Instead, Yahya admits that Earth is really 4.6 billion years old, but his "Atlas" uses hundreds of photos of fossils found over several centuries to "prove" that "the species have never changed" [sic]. This pseudo-scientific clap-trap, says noted French biologist Hervé Le Guyeder, makes this "new form of creationism even more insidious than the Christian-inspired one wreaking havoc in North America."
One wonders how the mainstream media, which typically handles anything Islamic with kid gloves, will handle this.