Re: [asa] Back to Darwin

From: Jim Armstrong <>
Date: Mon Apr 07 2008 - 15:34:23 EDT

Another troublesome one appeared a couple of weeks ago:
Drive to complexity seen in animal evolution
This news item points to a trajectory to increasing complexity as being
the norm, rather than devolution, with specific instances of the latter
being deucedly difficult to find.
JimA [Friend of ASA]

Jack Haas wrote:

> Lets see how long it takes to shoot this one down!
> Darwin Was Right: Natural Selection Speeds Up Speciation
> ScienceDaily (Apr. 6, 2008) -- In the first experiment of its kind
> conducted in nature, a University of British Columbia evolutionary
> biologist has come up with strong evidence for one of Charles Darwin's
> cornerstone ideas -- adaptation to the environment accelerates the
> creation of new species.
> "A single adaptive trait such as color could move a population towards
> the process of forming a new species, but adaptation in many traits
> may be required to actually complete the formation of an entirely new
> species," says UBC post-doctoral fellow Patrik Nosil, whose study is
> just published.* "The more ways a population can adapt to its unique
> surroundings, the more likely it will ultimately diverge into a
> separate species."

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Received on Mon Apr 7 16:23:50 2008

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