40,000 year-old footprints found in Mexico
Footprints rewrite history of first Americans
Hundreds of human footprints discovered beside an ancient Mexican
lake have been dated to 40,000 years ago. If the finding survives
the storm of controversy it is bound to stir up, it means that
humans must have moved into the New World at least 30,000 years
earlier than previously thought.
When the lead archaeologist first saw the prints, she said: "It felt
like a thunderbolt."
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