[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: birds/dino-birds with teeth

-----Original Message-----
From: John Conway <john_conway@mac.com>
To: larryf@capital.net <larryf@capital.net>
Cc: dinosaur@usc.edu <dinosaur@usc.edu>
Date: Thursday, May 02, 2002 9:09 AM
Subject: Re: birds/dino-birds with teeth

>Weight saving? How much do teeth weigh?
>How about aerodynamic reasons? Having no lips, bird teeth would (very
>slightly) increase drag. This might go for toothless pterosaurs too. :-)
>Or, isn't it more likely to be diet related? Many non-flying - and
>sometimes heavy - animals have lost their teeth through evolution.

.....maybe. Perhaps they were adapting to "prying-out" insects from crevices
in the bark???