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Re: Why did small dinos become extinct?
----- Original Message -----
From: "Tim Williams" <email@example.com>
To: <firstname.lastname@example.org>; <email@example.com>
Sent: Thursday, December 13, 2007 6:12 PM
Subject: RE: Why did small dinos become extinct?
(2) quill knobs, which were once thought to have been indicative of flight
(or at least flight ancestry) are now reported for _Velociraptor_,
suggesting (but not proving) that this character may not have originally
evolved for flight. <
Might quill knobs have evolved for carrying airloads generated for
directional control (same thing as evolving for flight....) ?