Tuesday, July 17, 2007

You cant use ERVs to support common descent. Not every organism has them.

Index to Common Creationist Claims about ERVs

On the one hand, Creationists accept the fact ERVs point to common descent. On the other hand, ERVs pointing towards common descent is unacceptable to Creationists. Thus the Siamese twin of "Common Descent is an Illusion" is born-- "You cant use ERVs to support common descent. Not every organism has them."

The claim I am referring to specifically states that ERVs do not exist outside of mammals. This is not true. ERVs have been found in marsupials, zebra fish, birds, snakes, toads ... Every vertebrate weve looked at has had ERVs.

Evolution only predicts that organisms susceptible to retroviral infection would have ERVs, and those ERVs would form a pattern of descent with modification. Thus far that prediction has held up.

3 comments:

Dr. Duke said...

Insects have ERVs too. Gypsy in Drosphilla fruitflies for just one example.

VWXYNot? said...

And don't forget woolly mammoth ERVs! What a great paper that was.

ERV said...

I did forget fruit flies! And mammoths!

hehe Sweet :)