Re: The brain and the hand

Spike Jones (
Fri, 06 Aug 1999 07:40:10 -0700 wrote:

> ...the big question in primate evolution is what pushed us upright.

Could a subtle change in the anatomy of the knee explain it? I have known two persons at least, who cannot straighten the knee, making upright walking for any distance a chore. A possible throwback? spike