Why do dogs have a tail?
One reason is to cue others to their "moods". Dogs pay attention to tail placement/movement to determine friendliness/aggressiveness/etc. of pack members. Some domesticated dogs use their tails to aid humans-pointing while hunting for example. And they are just darn CUTE when wagging!!! Im sure someone will come along with a much more scientific reason shortly. :) A dog's tail is an extension of the spine. It helps them to keep balance when they run.
it matters on the dog. curly tail dogs curl their tail up when their happy, and wag it the same time when their super happy. dogs with strait tails just wag it. when they're bored/ sad all dog's tail go down. And when all dogs a scared the tail is between their legs or it's strait as if their sad, but their tail would be stiff.
the tails used to be cut off on certain dogs like a boxer dog etc because these kind of dogs were used for fighting other dogs etc and making bets on them. therefore the tails were removed to stop the dog getting his tail bit!! you should never cut a dogs tail off, it is very panefull and all dogs need tails.
Cutting off a dogs tail is called "docking." Some dogs are docked because of a disease or infection, although many are docked because the owners think it looks better. You should never cut a dog's tail off; it is very painful and all dogs need tails. In general dogs' tails are not cut off - there is generally a stub of 3-5 vertebrae left when the tail is docked. Docking is a historical practice that…