Scientists claim that first extraterrestrial contact will be a loud event impossible to ignore, not a subtle signal.
Fact Check: Did Anthropologist Margaret Mead Say the 'First Sign of Civilization' Is a Healed Femur?
Anthropologist Margaret Mead said the first sign of civilization in an ancient culture is a femur that had been broken and then healed. She theorized that in the animal kingdom, if you break your leg, ...
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