We know that we adore a dog with a curly tail. But where do those curly tails come from? And why are there different kinds?
First off, did you know that a dog’s tail is made up of many small bones? Yep—it’s actually a flexible continuation of a dog’s spine. This contributes to a tail’s shape on the individual dog. For instance, pugs and some bulldogs have corkscrew-shaped tails because their vertebrae are either fused or wedge-shaped.