Are dogs the only animal that wag their tail?

@jayanth_77 Do you have a cat? If so, watch the cat. Cats also wag their tails.

Every animal make use of their tail. Cow for example use it to scare away flies sitting on her body. Monkeys make use of it in balancing themselves on thin branches and so on. No part of a creature is useless or it won't remain there.

Actually, many animals use their tails to communicate. It is merely that we are more familiar with dog 'language' than with any other animal 'language' and find it more useful to understand it. Cats also use their tails a great deal but not in the same way as dogs. When a cat wags its tail it is displeased but both animals hold their tails erect when they are alert and expectant and don't feel threatened. What about horses, cattle, elephants and giraffes? Well, they are all herd animals and they also use their tails to communicate but mostly to communicate with the ones behind them. A horse, for example, will swish its tail in a particular way to indicate whether it senses danger or not (and, of course, it also uses it to keep flies away, especially the kind which bite). Actually, animal communication is much more than tails. It is always a very complex body language involving the tail (when it has one), attitudes of the body and limbs, facial expression, smell and, to a lesser extent, noises. Since humans have developed such a complex system of noises with which to communicate, we hardly notice that body language, gesture and facial expression are also part of our communication system and we don't usually think of smell as being useful to us at all - in fact, we often consciously try to disguise it by using perfumes and deodorants!

Wolves are ancestors of dogs so they wag there tail for the same reason dogs do. Other animals wag their tails but not exactly to communicate but like to drive flies and other pests and other reasons.

Great question for quiz.

i noticed that you love to post about dogs. How many dogs do you have at home. am a dog lover too.

I thing wagging tail is common to many animals, I mean I think so... Though whatever you mentioned in terms of dogs is pretty much correct...

I think each animal use their tails to their own.. Not only dogs..