BBC News - Science & Environment: Old American theory is 'speared'

BBC News - Science & Environment The latest stories from the Science & Environment section of the BBC News web site.

Old American theory is 'speared' Oct 21st 2011, 01:21 An ancient bone with a projectile point lodged within it appears to up-end - once and for all - a long-held theory of how the Americas were populated.

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