More than 3 million years ago, our ancient human ancestors, including their toddler-aged children, were standing on two feet and walking upright, according to a new study.
Our human ancestors walked on two feet but their children still had a backup plan
Science Daily - 4 Jul 2018 21:19
More than 3 million years ago, our ancient human ancestors, including their toddler-aged children, were standing on two feet and walking upright, according to a new study.
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