75. Were the First Americans Wiped Out By an Asteroid? | Natural Disasters | DISCOVER Magazine: "Some 13,000 years ago, the Clovis people wandered North America, hunting ground sloths, mammoths, and other creatures—until hunters and prey both vanished. What happened? A team of scientists now think they know: A miles-wide comet, they announced in May, seems to have exploded just north of the Great Lakes, triggering a 1,000-year cold spell that helped bring on the extinction of the Clovis and the animals."
Thursday, February 14, 2008
75. Were the First Americans Wiped Out By an Asteroid? | Natural Disasters | DISCOVER Magazine
75. Were the First Americans Wiped Out By an Asteroid? | Natural Disasters | DISCOVER Magazine: "Some 13,000 years ago, the Clovis people wandered North America, hunting ground sloths, mammoths, and other creatures—until hunters and prey both vanished. What happened? A team of scientists now think they know: A miles-wide comet, they announced in May, seems to have exploded just north of the Great Lakes, triggering a 1,000-year cold spell that helped bring on the extinction of the Clovis and the animals."
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