Re: Intriguing new concept regarding human origins
- From: Gregory A Greenman <see@xxxxxxxxx>
- Date: Mon, 8 May 2006 21:47:06 -0500
In article <e3mcsr$1a2l$2@xxxxxxxxxxxxxxxxxxxx>, John Wilkins
<john@xxxxxxxxxxxxx> declared...
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;Example please? AFAIK, most if not all cases of organisms damaging
2) Other organisms move into those destroyed environments and live
perfectly happy and healthy
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.
It matters to the disease or parasite in that host. Their
relatives live on, but they die. Those particular germs,
bacteria, parasites or whatnot have destroyed their environment,
thus they are examples of #1 above.
--
Greg
----
http://www.spencerbooksellers.com
greg00 -at- spencersoft -dot- com
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