For the first time, scientists have continuously monitored a planet's escaping atmosphere over a complete orbit, revealing ...

Learn about the latest NASA and ESA images of Comet 3I/ATLAS, showing its brightness and tails of dust and plasma.

Fluffy, curly, short or stumpy, tails are an adorable feature of our furry friends. But if not for human amusement, why do dogs have tails? A vet explains. Nothing makes me feel quite as happy and ...

This behavior may seem alternately adorable and strange to us, but dogs have very good reasons why they chase their tails There are few things cuter than watching your dog discover its marvelous tail ...

Lizards possess a remarkable survival strategy where their tails detach and continue to wriggle, distracting predators and ...

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 tails.