Re: A Point for Calvin

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Thomas Clarke wrote:
> Tom Clarke wrote :

> Apparently 11 to 14 year old boys can kill bears with rocks.
>
> I think William Calvin hypothesized that it was throwing
> ability that provided the selective advantage for large
> brain size in hominds. Perhaps this event is a point for him.

Perhaps the significant fact is that a group of boys working together
killed a bear by throwing rocks. A lone boy throwing stones would have
probably been mauled, eliminating the possibility of his genes surviving.

Arnold Doray
doray@geos.co.uk

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