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Re: Theropod "migrations"

On Thu, 29 Apr 1999 gejd@concentric.net wrote:

> Recent data:
> I don't have a citation, but I remember reading within the past year that
> tests on North American Wapiti (I think) showed a fear response to Siberian
> Tiger urine. The conditions of the tests appeared to be such that
> ruled out the possibility that the response was generic to big cats.
> The authors hypothesized that it was a genetically-programmed response
> inherited from Siberian ancestors who were hunted by tigers when the
> range of the tiger was much larger than at present.

Though if Dr. Tom is right about the _atrox_ cats of North America being
referable to (or closely related to) _P. tigris_, that could be a factor
as well.

-Nick P