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Politics : The Environmentalist Thread
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To: neolib who wrote (21061)3/30/2008 12:08:02 PM
From: TigerPaw  Read Replies (1) of 36917
 
I favor the savanna fragment hypothesis. That was the one where bipedalism allowed for quicker movement from one forest fragment to another (with the added bonus of seeing over the grass while you travel). In this hypothesis the chimps that most easily walk upright still get to keep a complex mixed gene pool by returning to the larger forest, but gain an advantage of unoccupied niche in the smaller fragments that knuckle-walking chimps can't easily reach. This avoids the genetic problems that can arise with a small founder population. Ultimately the upright walker variety would walk far enough away that they no longer mated with chimps and diverged to a new species.

I suspect that statistical analysis of gene information will be better able to show which characteristics evolved first and in wha order.

TP
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