Re: Lemurs and Feathers

[Dinogeorge@aol.com]

In a message dated 6/19/01 4:18:14 PM EST, david.marjanovic@gmx.at writes:

<< except for a lack of arboreal adaptations in
 theropods (such as mobile extremities and grasping feet) >>

Grasping feet were secondarily lost in most cursorial theropods; the small 
digit I at the side/back of the foot is all that remained of the opposable 
hallux. Having a large hallux pointing backward on your foot is rather 
detrimental to fast cursoriality, so it is quickly vestigialized in such 
theropods.