Uncommon Descent Serving The Intelligent Design Community

Arguing with Evolutionists or How I Could be Rich

If I had a nickel for every time evolutionists insisted that they are merely following the evidence, immediately after (or before) making religious arguments, I think I would be a zillionaire. You can read about Jerry Coyne and PZ Myers insisting on their innocence here and here, but this self contradiction is not limited to the big shots. From laboratories to sanctuaries, and dorm rooms to chat rooms, the constant refrain of evolutionists is that the raw data make their idea a fact, but then the supporting arguments are religious. Evolutionists are the proverbial fish that doesn’t know it’s in water, the lampshade partier who doesn’t know he is drunk.  Read more

Polar bears and mammalian speciation

The polar bear (Ursus maritimus) exhibits numerous adaptations to cold environments, fur, foot pads, head shape, exclusively carnivorous diet, heightened sense of smell, etc. Their close relationship to the brown bear (Ursus arctos) has long been recognised. Fertile hybrids are well-documented in captivity and there are rare examples of hybrids in the wild – the most recent being in 2006. Interbreeding, however, has not outweighed other taxonomic criteria, although it has been a factor in moving the polar bear from the genus Thalarctos back to the genus Ursus. “With their distinctly different morphology, metabolism, and social and feeding behaviors, the polar and brown bears are classified as separate species.” Interestingly, a cluster of brown bears (known as ABC bears) have Read More ›

Neandertals are part of the human family

It was 15 months ago that Science carried a story about the completion of a rough draft of the Neandertal genome. Palaeogeneticist Svante Paabo of the Max Planck Institute for Evolutionary Anthropology in Leipzig was reported as saying “he can’t wait to finish crunching the sequence through their computers”. It has been quite a long time coming, as it is more than a decade since Paabo first demonstrated it was possible to analyse Neandertal DNA sequences. Earlier reports suggested that Neandertals were sufficiently distinct from humans for them to be classified as a separate species of Homo. The draft genome has more than 3 billion nucleotides collected from three female Neandertals. “By comparing this composite Neandertal genome with the complete Read More ›

ORFans and the Theory That (Never) Predicted Them

Because similar species are thought to share a relatively recent common ancestor, they are assumed to have not had much time to evolve differences between them. That explains why they are similar, and it also predicts that such species do not have significant differences. Their genome differences should be minor. This is because evolution is limited by the rate at which genetic variations can appear and subsequently spread throughout the respective lineages. But we now know of significant numbers of unique genes between allied species and even between different variants within the same species.  Read more

Explosive Evolution of Whales Followed by Little Change

You know the drill, new forms appeared rapidly followed by little change. This time it’s whales, the late comers turned allstars of the ocean. Somehow the whale ancestors lost their hind limbs, grinding teeth and pelvises and developed a host of new features with great efficiency. These new features include the fluke tail with its unique vertical propelling motion, the huge filter-feeding jaw, and the ability to give live birth and raise its young in the marine environment. All this while acquiring superior skills in its new marine environment. The latest entry to the community could swim, dive and feed better than most fish and sharks. It all just happened to happen, and with great evolutionary speed.  Read more