Why do dogs chase their tails?

Charlotte Updated on 3 June, 2024 why do dogs chase their tails We’ve all seen it, that comic moment when your dog runs around in a circle trying to catch its own tail. We sit there wondering whether they know it’s a body part, or whether they think it’s a pesky toy that’s been following them for years. Either way, it’s entertaining for us to watch. So, why do dogs chase their tails? Is it simply because it’s as fun as it looks? Or could it be a sign of something else?