SETI bioastro: FW: [HASTRO-L] Meteorite impacts and Ice Age fauna

From: LARRY KLAES (ljk4_at_msn.com)
Date: Wed Dec 12 2007 - 06:44:13 PST

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    >From: "John M. McMahon" <mcmahon_at_LEMOYNE.EDU>
    >Reply-To: History of Astronomy Discussion Group <HASTRO-L_at_listserv.wvu.edu>
    >To: HASTRO-L_at_listserv.wvu.edu
    >Subject: [HASTRO-L] Meteorite impacts and Ice Age fauna
    >Date: Tue, 11 Dec 2007 21:34:51 -0500
    >
    >BBC 12/11/07:
    >
    >"Great beasts peppered from space"
    >
    >"Startling evidence has been found which shows mammoth and other great
    >beasts from the last ice age were blasted with material that came from
    >space.
    >
    >Eight tusks dating to some 35,000 years ago all show signs of having being
    >peppered with meteorite fragments."
    >
    >[snip]
    >
    >"The intriguing question is how space impacts might fit into the extinction
    >story of the ice age beasts. The mammoth, their elephant cousins the
    >mastodon, sabre-toothed tigers, some bears, and many other creatures all
    >disappeared rapidly from the palaeo-record about 10,000 years ago.
    >
    >Their loss has traditionally been put down to either climate change and/or
    >the efficient hunting technologies adopted by migrating humans.
    >
    >Could impacts have also weakened these populations?"
    >
    >Lots more:
    >
    >http://news.bbc.co.uk/2/hi/science/nature/7130014.stm
    >
    >JMM / LMC


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