Imagine a dog or cat without a tail hard. And why do animals need a tail?
For some it serves as a fly swatter - cows and horses summertime tail helps to fend off the invasion of flies, horseflies, mosquitoes, horseflies.
But the dog's tail... talking. Meets dog master, tail wagging means happy. If a dog's tail is slightly raised and goes from side to side, you know, she says, "I'm not a throne, but you don't touch me, it will be bad". Preloaded, lowered tail - a sign that the dog obeys the owner or afraid of something.
The wolf, the Fox and the Arctic Fox uses its tail as a blanket in winter, dig a hole in the snow, curled up, and the tail cover your nose from freezing. And even foxes and wolves on the run, the tail serves as a rudder helps steer. Similarly uses its tail and protein, only she does it in flight.
The monkeys tail helps with the production of food. Catch monkey tail for the branch that will hang upside down and let the feet to pluck the fruit.