Saying goodbye to a beloved pet is one of the most difficult experiences a family can face. For many people, pets are more ...

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 ...

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.

A mutation in a gene called TBXT may be behind the loss of great apes' tails, according to a new study. Jabid Ishtiaque via Flickr under CC BY-NC-ND 2.0 Our primate ancestors used their tails for ...

Find the answer for Fish that may have serrated tails from the people who brought you the USA TODAY Daily Crossword Puzzle.

Dogs use their tails to communicate. Eastimages/Moment via Getty Images Whether they belong to reptiles, insects, birds or mammals, tails serve a wide variety of purposes. Modern animals use their ...

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 ...

WASHINGTON — Our very ancient animal ancestors had tails. Why don’t we? Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Somewhere around 20 million ...