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Evolution is finished! December 25, 2007

Posted by John A. Davison in general.
182 comments

In 2004 I published a paper “Is Evolution Finished?” Rivista di Biologia/Biology Forum 97: 111-116. I now rearrange the words and offer it as a challenge to those who claim otherwise. 

It is my conviction that creative evolution is a phenomenon of the distant past. Just as ontogeny is a self-limiting process terminating in the adult organism and its subsequent death,  phylogeny has had a similar history resulting in the current biota. I see no evidence for the emergence of any new life forms, only trivial variations in existing species. In the distant past creative evolution and extinction were occurring simultaneously.  That is no longer evident. This idea is not original with me and has been suggested by such distinguished scientists as Robert Broom, Julian Huxley and Pierre Grasse. I have simply extended their conclusions to include true speciation. Stated another way, there is no longer a balance between creative evolution and extinction. (more…)

Global Warming December 19, 2007

Posted by John A. Davison in general.
237 comments

I regard the future of our civilization to be in great jeopardy.

As a physiologist I regard man as a chemical machine obtaining energy through the oxidation of fuel just as other chemical machines do. Machines are rated in horse power; one horsepower is 746 watts. A 70 kilogram human at rest is producing heat, CO2, and H2O through the oxidation of  food stuffs at a rate of about a tenth of a horsepower (80 watts). Accordingly,  a human, when driving a typical automobile rated at 200 horsepower, is producing CO2 and H2O at a rate 2000 times greater than himself. (more…)

The Prescribed Evolutionary Hypothesis December 16, 2007

Posted by John A. Davison in general.
387 comments

The Prescribed Evolutionary Hypothesis (PDF download requires Adobe or similar viewer)