You may have noticed that your cat's tail moves in all sorts of ways, from quivering in an upright position, to swishing from side to side, to being held down close to the ground. But besides using ...

(CNN) — 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 ...

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

If a cat corners a gecko, the little reptile has one last trick. It twitches its tail, snaps it off, and sprints away while the still-wiggling tail distracts the hunter. Scientists call this move ...