[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Greg Paul, Theopods, and feathers
>>...what does everyone think about the now-common
>>pictures of theropods (etc.) running with the arms all tucked up? It
>>does look kind of cool, but do you think it really happened?
>I think it makes sense provided that the theory that _Deinonychus_ et. al.
>are descended from flying ancestors (and so technically were flightless
>birds???!!!) is correct.
Not necessarily. Tucking the arms in at the sides reduces air drag and
might add speed to a running biped, whether bird-derived or no. The Frilled
Lizard does this when running bipedally, as I have seen myself in Australia.
Ronald I. Orenstein Phone: (905) 820-7886 (home)
International Wildlife Coalition Fax/Modem: (905) 569-0116 (home)
Home: 1825 Shady Creek Court Messages: (416) 368-4661
Mississauga, Ontario, Canada L5L 3W2 Internet: firstname.lastname@example.org
Office: 130 Adelaide Street W., Suite 1940
Toronto, Ontario Canada M5H 3P5