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Re: To climb or not to climb

In a message dated 12/15/98 12:28:20 PM EST, Patrick.Norton@state.me.us

<< A notable exception to this may appear to be the birds.  But birds would   
 have avoided this evolutionary paradox if it turns out (which seems to be   
 the case) that they did not evolve arboreal characters (perching feet,   
 etc.) until after the evolution of flight. >>

Bird would not be exceptional; they fit the arboreal-bipedal correlation quite
well. Any arboreal features of dromaeosaurids are best be regarded as
holdovers from the arboreal common ancestor of birds and dromaeosaurids. Then
they need no convoluted explanation for their appearance in dromaeosaurids.