[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

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
>>nothing else).
>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.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661