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GBurch1@aol.com On Friday, August 06, 1999 Wrote:
>he's [ Greg's lemur "Darwin"] got his thumb opposed to his fingers as
>he grasps the pen
Are you sure his thumb is really is against his fingers and not his palm?
>A chimp will use her thumb in an opposed fashion almost as often as
>a human, from the observations I've made in zoos and on video.
I really don't know about lemurs but a chimp can bring its thumb against its palm and that works OK for a power grip. I was under the impression that only a human can bring his thumb against the tips of the 4 other fingers and that's what you need for a precision grip.
By the way, Darwin sounds like a great pet.
John K Clark firstname.lastname@example.org
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