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Re: pterosaur femora sprawl
Nor do I.
----- Original Message -----
From: "ptnorton" <email@example.com>
To: <firstname.lastname@example.org>; <email@example.com>
Sent: Monday, June 02, 2008 7:31 PM
Subject: Re: pterosaur femora sprawl
If there was an arboreal stage in the origin of avian flight, which is an
open question, I don't see a compelling argument for the necessity of
either a quadrupedal climbing or a four-limb gliding phase.