Here is a link to an interesting hypothesis about what may have been a really bad day for some Mammoths and the Clovis people. The Younger Dryas was a really cold interval about 13,000 years ago when we lost a number of the really large mammals , such as the Mammoth.
Arizona Geology: CSI Younger Dryas: did a comet kill the mammoths?
Harry Allen
Sunday, January 4, 2009
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