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Re: More about Erickson et al. 2004 and RE: Delayed "growth spurt" inT. rex


Blaffer-Hrdy showed the following to be true, I think it was, in
bonobos in India. It's been a while since I read her book on that
subject. A very interesting read and quite enlightening.

Marc Bauer
--- Dann Pigdon <dannj@alphalink.com.au> wrote:

> Another possible cause of the tyrannosaur growth curve could be the
> presence of an alpha breeding pair. A dominant pair in a group
> (assuming
> some tyrannosaurs lived in groups, of course, which I believe is
> supported for some species) may supress the maturation of other group
> members. 
> Delayed maturation is seen in geladas (baboon-like primates), where
> the
> mere presence of an alpha male prevents any other of the groups males
> from reaching full adult size. If the alpha male dies and is not
> replaced by an outside male, one of the remaining males in the group
> will go through a remarkably rapid growth spurt, bulking up and
> developing adult male face colouration.
> -- 
> ___________________________________________________________________
> Dann Pigdon
> GIS / Archaeologist         http://www.geocities.com/dannsdinosaurs
> Melbourne, Australia        http://heretichides.ravencommunity.net/
> ___________________________________________________________________

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