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Re: A New Hypothesis for the Origin of Flight?
----- Original Message -----
From: "Waylon Rowley" <email@example.com>
Sent: Tuesday, April 30, 2002 4:58 AM
> It's also possible the retrices of
> Archaeopteryx helped make up the loss of mass.
Aren't feathers supposed to be lighter than tail vertebrae? (Or is that one
of those truisms?)
> also that the distal caudals are more massive relative
> to those in a normal dromie tail. For what purpose?
Maybe just to make it stiffer -- few long instead of many short vertebrae
means fewer joints in the tail.
> First, I don't see the animals hopping between
> branches. I see them as having a firm foothold on
> their *present* branch,
Thanks for the explanation... the above would be a good reason to evolve a
reverted hallux very early. Instead, it comes very late.
> I'm guessing their
> food source was further out on the branch....maybe
> seeds or fruits,
Hardly enough to make a living when there are few or no angiosperms around.