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I wrote:
David Marnajovic wrote:
"I don't completely understand this...
anyway, there probably were no suitable empty niches at that time, I'd
say."
Well,
for a species to turn into another that occupies a different ecological niche,
adaptive evolution directed by natural selection is required. But a creature
living differently from its ancestors can't evolve, if all of the intermediates
aren't favoured by nature. So, I meant that the earliest intermediates didn't
spread their alleles better than their fellow beings, and as such a new,
different kind of being and a species consisted of many individuals of it
couldn't evolve.
Henri
Rönkkö |