Naut's Tidbits & Snippets for Sunday, August 26, 2007

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Sunday, August 26, 2007

The Great American Extinction

‘Scientists have been arguing for years about what caused the die-off of both North American culture and many large animals near the end of the last ice age, about 13,000 years ago. Did hunters wipe out the mammoths, saber-toothed tigers and giant sloths? Neither, says. L. Becker, a geochemist at... Sign in to see full entry.

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