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Re: Re: More Holtz on the origin of birds
>>are pretty rare among dinosaurs. Ostrom argued that the dromaeosaurid tail
>>was a balancing pole during combat, allowing the raptor to balance on one
>>foot while slashing with the other. I would add that this tail morphology
>>would also allow dromaeosaurids and Archie to make rapid turns while
>>running, much as cats do (see the cheetah in a recent car commercial, if
>All exapted from the original use of the feathered tail as an aerial rudder
>and stabilizing organ.
[Sorry about the spam; just couldn't help myself :-) ]
Thomas R. Holtz, Jr.
Dept. of Geology
University of Maryland
College Park, MD 20742