Not fruits, apes began to walk upright reaching for leaves, study shows

#PureScience
In a new study published in the journal Science, researchers from University of Michigan propose that grasslands appeared on Earth at least 10 million years earlier than thought, which changes what we so far know about bipedalism. Watch this episode of Pure Science with Mohana Basu to learn why scientists think that apes evolved to walk on two feet because of leaves, and not fruits.
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