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Re: birds scales
In a message dated 95-12-08 19:37:10 EST, Robert.J.Meyerson@uwrf.edu (Rob
>I think the point being made is that a feather is simply a modified hair.
>real question is what were the steps taken to make this transformation? If
>assume for a moment that this hair was pretty much undifferentiated until
>first aboreal theropods arrived, we could conclude that this modification
>occurred to help the animals travel from branch-to-branch, or tree-to-tree.
>Here's a possible evolutionary path: Hair -> Down -> Feather.
This point could be settled real fast if someone has compared hair protein
and feather protein and found them to be similar or different. I can't
imagine this hasn't been done yet.