Thursday, April 06, 2006

MISSING LINK FOUND?
The last day for theosebes?

A long sought 'missing link' between sea and land life has been discovered according to scientists:
Scientists have discovered fossils of a 375-million-year-old fish, a large scaly creature not seen before, that they say is a long-sought missing link in the evolution of some fishes from water to a life walking on four limbs on land.

In two reports today in the journal Nature, a team of scientists led by Neil H. Shubin of the University of Chicago say they have uncovered several well-preserved skeletons of the fossil fish in sediments of former streambeds in the Canadian Arctic, 600 miles from the North Pole.

The skeletons have the fins, scales and other attributes of a giant fish, four to nine feet long. But on closer examination, the scientists found telling anatomical traits of a transitional creature, a fish that is still a fish but has changes that anticipate the emergence of land animals — and is thus a predecessor of amphibians, reptiles and dinosaurs, mammals and eventually humans.

In the fishes' forward fins, the scientists found evidence of limbs in the making. There are the beginnings of digits, proto-wrists, elbows and shoulders. The fish also had a flat skull resembling a crocodile's, a neck, ribs and other parts that were similar to four-legged land animals known as tetrapods.

Other scientists said that in addition to confirming elements of a major transition in evolution, the fossils were a powerful rebuttal to religious creationists, who have long argued that the absence of such transitional creatures are a serious weakness in Darwin's theory.

Perhaps I'll stick around just in case.

2 comments:

Chuck Anziulewicz said...

The term "missing link" is batted around by Creationists so often, but it's really rather meaningless. In reality ALL fossils are "missing links" in that they represent individual points in the very slow, gradual process of evolution. Modern human beings today are "missing links!" We represent a transitional species in the genus, Homo, somewhere between our heavier-browed ancestors of tens of thousands of years ago and WHATEVER we might eventually evolve into tens of thousands of years hence.

Chuck Anziulewicz said...

Anyway, Alan, I hope you'll keep us all up to date on the latest research in the fields of Creation Science and Intelligent Design Science. Any new breakthroughs? I'd love to hear about them.