It's a question as old as time itself: What's the deal with cats' tails? As it turns out, a cat's tail serves a couple of different functions.
Why Do Cats Have Tails?
Ever noticed that your cat is startlingly good at walking along narrow surfaces? That's because, like many animals, their tail helps them balance. The tail acts as a counterweight when your cat walks along skinny surfaces, and helps them stay standing when they run around tight corners to catch prey or their favorite toy.
A cat's tail can seem very expressive. You may have noticed your cat flicking her tail in various circumstances. Cats use their tails to communicate. Different tail states and movements can indicate that your cat is stressed, angry, or content. For example, if you've ever seen a cat with a super puffed-up tail, you probably know that cat is feeling threatened and possibly aggressive.