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 ...

For half a billion years or so, our ancestors sprouted tails. As fish, they used their tails to swim through the Cambrian seas. Much later, when they evolved into primates, their tails helped them ...

Most vertebrates in the animal kingdom sport tails of some sort. Birds and fish use their tails as steering mechanisms to glide through air and water respectively, geckos use their tails to store fat, ...

Humanity's ancestors have all had tails, but researchers may have identified the genetic mutation responsible for humans and certain primates losing the appendage, a new study suggests. A group of ...

If you've ever wondered why seeing a dog wagging its tail makes you so happy, science might have an answer. Humans' relationship with pooches stretches back to the dawn of civilization, but it has ...

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