At 2006-08-07 17:32:10 +0530, [EMAIL PROTECTED] wrote: > > Certainly not. Perhaps you're thinking of speciation (whereby an > isolated population of a single species evolves differently from > the rest, and thus becomes a new species).
The key being that the (reproductively) isolated population has no way to share mutated genes with the outside population. Evolution itself, however, does not depend on any such isolation, nor does all significant evolution necessarily lead to speciation. -- ams
