Walking has taken a very long time to develop, with evidence of bipedalism among early humans in Africa roughly 4.4 million years ago.
- Professor of Anthropology, University of Tennessee
For thousands of years, Native Americans left their artistic mark deep within caves in the American Southeast. It wasn’t until 1980 that these ancient visual expressions were known to archaeologists.
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- Location: Knoxville, Tennessee, U.S.
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