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Re: dino-lice

> I like the idea that the single-clawed forelimbs of alvarezsaurs were
> used to penetrate carcasses (especially from the inside), or that they
> were used to prise parasites off hides - either from the hides of
> other species, or from each other (as a grooming tool).  Thus
> returning us to the origin of this thread: Dino-lice.

Those functions do not explain the limb shortening trend in the group.
Both jobs could be accomplished better with unmodified, primitive, arms.

Jason Brougham
Senior Principal Preparator
Department of Exhibition
American Museum of Natural History
81st Street at Central Park West
212 496 3544