Showing posts with label Galapagos Islands. Show all posts
Showing posts with label Galapagos Islands. Show all posts

Friday, May 11, 2018

Truth is Stranger than Fiction: Galapagos Creationism Center to be Built

The Adventist News Network is reporting that a new creationism center will be built on the Galapagos Islands:
A large incentive project for scientific research will soon become a reality in the Galapagos Archipelago, located 1,200 kilometers off the coast of Ecuador. Construction on the Creationist Center, maintained by the Adventist Church through its institutions, will begin in August. Geovanny Izquierdo, president of the Church in Ecuador, confirmed the date for construction this week. The 741 square meter piece of land is located in the center of Santa Cruz, the most populated island in the archipelago. The building will include, initially, the Creationist Center, some administrative rooms for the Loma Linda Adventist College and new headquarters for the Central Adventist Church.
There is something deeply ironic about this. Of course, it wasn't just the Galapagos Islands that allowed Darwin to develop the theory of Natural Selection. His travels to Patagonia also paved the way for it. Nonetheless, this is almost like the U.S. presence in Guantanamo Bay or an embassy on foreign soil.  They will certainly be viewed as a curiosity by the incoming scientists.

Monday, February 04, 2013

Letters of Alfred Russel Wallace Online

The collected letters of Alfred Russel Wallace, the co-discoverer of natural selection, have been put online by the Natural History Museum.  Wallace was the subject of a chapter in the David Quammen book The Song of the Dodo: Island Biogeography in an Age of Extinction. The chapter was called "The Man Who Knew Islands." Where Darwin used the Galapagos Islands and the terrain of South America to devise his theory, Wallace used the islands of Indonesia.  The site is billed as having:
  • iconic correspondence between Wallace and Charles Darwin about evolution by natural selection
  • important observations and discoveries made when in the Malay Archipelago (1854 - 1862)
  • fascinating discussions on a variety of subjects, scientific and social such as glaciology, anthropology, epidemiology, astrobiology, socialism, land reform and spiritualism
Wallace was a spiritualist and began to infuse his scientific writings with spiritualism, a development which dismayed Darwin, who had gone to great lengths to show that natural selection could be thought of in scientific terms, alone.

Friday, January 29, 2010

Bringing a Galapagos Tortoise Back to Life

Researchers suggest that the Galapagos Tortoise Chelonoidis elephantopus might be brought back to life. The tortoise was hunted to extinction by whalers in the 19th century. "Great sport, that. Let's go find another fast-moving species to hunt!!" Sorry, I digress. Casey Kazan of Yale University writes:
A genetic analysis of 156 tortoises living in captivity and the DNA taken from remains of specimens of the now-extinct Chelonoidis elephantopus revealed that nine are descended from the vanished species, which once made its home on Floreana Island in the Galapagos. Over a few generations, a selective breeding program among these tortoises should be able to revive the C. elephantopus species, said Adalgisa Caccone, senior research scientist in the department of ecology and evolutionary biology at Yale.
Not like reviving a Neandertal but pretty impressive, nonetheless.

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Monday, June 29, 2009

Galapagos Finches in Trouble

According to a story in the Independent, by Mike McCarthy, the finches that Darwin wrote about in his book On the Origin of Species, are in danger of extinction. McCarthy writes:

There are now only about 100 individuals left of the Galapagos mangrove finch, the rarest of the 14 closely related finch species that Darwin encountered when he visited the islands in 1835 as the naturalist on board the survey ship HMS Beagle.

All of these species evolved from a single common ancestor to fit different niches in the ecosystem, and when Darwin realised this once he was back in Britain, it helped to trigger his insight that completely new species could come into being through the process of natural selection.

The mangrove finch has shown the most extreme evolution of all: it inhabits only the narrow strips of mangrove swamp that are found in just a few parts of the Galapagos coastline.

Black rats which infested the holds of pirate ships have been identified as the chief culprits behind the destruction of the finches. The rats are thought to have arrived on Isabella, the largest of the Galapagos islands, on pirate vessels perhaps as early as the 16th century. Pirates used the archipelago, which is around 500 miles off the coast of Ecuador in the Pacific Ocean, as a hiding place before sailing off to the Spanish shipping lanes in search of boats carrying treasure.

The conservation effort is underway to move some of the finches to a location that is free of predatory rats. The story also allows for some observations that only those steeped in "Darwiniana" would know:

When Charles Darwin visited the Galapagos Islands in 1835 he and colleagues collected many of the finches, but did not at first realise they were related and missed their significance. It was not until he had returned to London that the ornithologist John Gould examined them and found them to be all subtly different but closely related members of a quite new family of birds.

It was this discovery that set Darwin thinking that they may all have evolved from a single common ancestor, and thus to start to understand the mechanism of natural selection, which enabled new species to evolve.

I hope the project is successful.

Sunday, May 17, 2009

Acts & Fiction

The new ICR Acts & Facts magazine has several interesting columns in. One of them is Galapagos: Showcase for Creation, written by John Morris, the son of the late Henry Morris, head of the ICR. In it, he writes:
The Santa Cruz River was the Beagle's first major stop, and thus Darwin's first chance to apply Lyell's ideas. Dr. Austin discovered Darwin had made numerous errors in Argentina as he attempted to interpret the river valley according to uniformity, and mistook major Ice Age flooding for great ages of minor processes.
Of course, Dr. Morris does not say what these errors were, just that Darwin made them. You have to go to another article, Darwin's First Wrong Turn, by Steven Austin to get that information. In that article, Austin suggests that Darwin misidentified part of a section of the river bank as a basalt flow. Austin states that it cannot be a basalt flow but must, instead, be the remains of a catastrophic flood channel. Austin writes:
Why was Darwin so wrong concerning his interpretation of the river valley? First, he had expectations about what he would see at Camp Darwin before he arrived. His scientific judgment was tainted by preconceptions. Second, Darwin was reading the wrong book before his journey up the Santa Cruz River valley. He had been reading Charles Lyell's book Principles of Geology (1830) during his trans-Atlantic voyage on the Beagle. That book gave him the idea that the biggest boulders were deposited from melting icebergs.
Austin provides no evidence that the deposits were not the remains of a melting glacier. He simply says that there had to have been a colossal flood. Back to Morris. He writes that Darwin observed the finches on the Galapagos Islands and applied natural selection to them. Of this, Morris states:
Evolutionists trumpet the several Galapagos finch "species" as arising by adaptation from one species. Creationists agree, but this did not happen through evolution. Normally the finch types segregate by lifestyle according to their beak shape, but in times of stress they interbreed and combine. No evolution here. The flightless cormorants are recognizably related to other species of cormorant on other continents, but these have lost the use of their wings. Since when is the loss of a useful structure an evolutionary development? The real question is how animals acquire wings in the first place, not how they lose them.
Darwin correctly observed that the finches in different islands looked different and that their beaks were different. In other words, they had adapted to their environments. What is this an example of? Evolution. How did flightless cormorants lose the use of their wings? Evolution, that's how. Descent with modification. This could happen any number of different ways. For example, a small population may have broken off in which a mutation for flightless wings was present. In small populations, this trait would have expressed itself. In the presence of no selection in favor of flight, the trait would eventually permeate the population. The fact that flightless cormorants exist at all means that they can survive just fine without wings that fly. There may have been another reason why they retained the wings but not the ability to fly with them. Wings make great insulators. In the Liaoning fossil beds in China, researchers are discovering flightless dinosaurs that had wings. And that, by the way, is how they acquire wings in the first place. Any time you have descent with modification, you have evolution going on. More fiction from the ICR.