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Re: tiny-armed theropods



On 10/7/2011 12:05 PM, Richard W. Travsky wrote:
Went to youtube to see if there was any footage of ostriches running
(the closest thing, hopefully, to arms and running) and found

http://www.youtube.com/watch?v=1r-b8uY7C9E&feature=related

For the most part the arms/wings are kept against the body but noticed
in a turn they splayed out to assist with the turn. The feathers are
probably contributing to the assist, like dive breaks...

Being knee-walkers, ostriches may not be analogous to basal theropods relative to investigating Allen's pitch-down observation.

Maybe a mechanical model?