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Date: | Fri, 1 Jun 2018 14:41:31 -0700 |
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> >However, the outcome of evolution is never assured, nor inevitable
Pete, let's be careful about our words. Evolution means change--so if no
change, then no evolution.
What comes to mind is the axiom, "if it works, don't fix it."
We see this in a number of species that appear to be virtually unchanged
from their ancestors in the fossil record. They nailed how to thrive in a
certain niche, and if that niche continues to exist, there may be no
selective pressure to change.
And evolutionary change may be invisible to us--for example, I'm not sure
that the apparent change towards resistance to tracheal mite has been fully
elucidated.
--
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com
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