Re: A Point for Calvin
Wed, 02 Oct 1996 02:26:41 -0700
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.