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Re: mass extinction
On Mon, 20 Mar 2006 19:57:03 -0500 Jeff Hecht <email@example.com>
> Remember that the Pleistocene lasted over two million years, and
> during that time the flora and fauna had evolved to survive a series
> of glacial/interglacial cycles of varying duration. Successive ice
> ages did wipe out evidence of previous glacial/interglacial cycles,
> but from what I've read and investigated, there isn't much evidence
> of major megafaunal extinctions during previous interglacial thaws.
> That's an important part of the evidence that humans were linked to
> the Pleistocene extinction -- our widespread presence was something
> that differed from prior interglacials.
One could argue that we are still "within" the Pleistocene. Past
interstades have lasted longer than 10,000 years...........