Humans have many wonderful qualities, but we lack something that’s a common feature among most animals with backbones: a tail. Exactly why that is has been something of a mystery. Tails are useful for ...

While researching AI robotics I came across this interesting robotic human tail developed by researchers at Keio University in Japan a few years ago. The Arque robotic tail aims to augment human ...

WASHINGTON — Our very ancient animal ancestors had tails. Why don’t we? Somewhere around 20 million or 25 million years ago, when apes diverged from monkeys, our branch of the tree of life shed its ...

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