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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Humans have many ...