Posted: Sep 14, 2011 3:33 pm
theropod wrote:
Nice example of convergent evolution, but this is not the same type of possibility as the emergence of birds from theropods. We know this because the fossil record documents the emergence of birds and how they evolved. In order for birds to have arose by the same means as the two types of mammals cited here there would have to have been a period of time wherein the birds were nothing like theropod dinosaurs. This isn't what we find.
RS
You are using theory to justify the facts. The moles look similar due to convergent evolution. Birds and theropods look similar due to the line of descent. You cannot use these statements which are dependent on the theory as evidence to confirm the theory.