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Re: Further Evolution beyond the Human?
Richard Ottolini (stgprao@sugarland.unocal.COM)
16 Oct 1996 13:09:34 GMT
In article <326410F5.708F@indiana.edu>,
C. Marc Wagner @ UCS <mwagner@indiana.edu> wrote:
>For long peiods of time, environmental changes are gradual and the
>diversity among species increases. Periodically, cataclysmic events
Sephen Gould, harvard paleontologist and pop sci author, argues against
this in his new book Full House. Evolution both complexifies and simplifies.
The vast majority of species 99.9%+ have always been bacteria.
The variety of species can be graphed as a bell-curve with bacteria at the peak.
It is just that with hundreds of millions of species over the eons, the tails
of the bell-curve have allowed a few to be as complex as vertibrates and humans.
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