Re: Intriguing new concept regarding human origins

In article < $1a2l$2@xxxxxxxxxxxxxxxxxxxx>,
John Wilkins <john@xxxxxxxxxxxxx> wrote:

Gregory A Greenman wrote:
In article <1146910820.683509.97750
@v46g2000cwv.googlegroups.com>, hugheaston01@xxxxxxxxxxx
<hugheaston01@xxxxxxxxxxx> declared...
Desertphile wrote:

1) Many organisms destroy their environments;
2) Other organisms move into those destroyed environments and live
perfectly happy and healthy
Example please? AFAIK, most if not all cases of organisms damaging
their environments are foreign species introduced by humans. Hardly
relevant to the more general case of life throughout Earth's history.


How about a disease or parasite that kills its host?

It doesn't matter so long as the host species is numerous and able to replace
the lost "resources" (from the pathogen's POV). Once host numbers get too
low,
there is selection for less virulence. I doubt there have been many pathogens
that extinguish all their hosts.

How would we know? All we can see is a lineage dying out, we don't have
causes in most cases.

--
Guns don't kill people; automobiles kill people.

.

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