Why do Animals have Tails?
Several animals have tails though some animals are exception to that, including humans. Of course the ancestors of human beings, which are monkeys, have tail. The purpose of having a tail by an animal may not be the same for another. Dogs and cats use the tail they possess as a means to communicate and display emotions. Body language is very much significant in dogs and cats. A wrong indication by the tail will generate an unwanted reaction. A drooping tail usually indicates that it is under fear, while an erect stiff tail indicates that it is exhibiting confidence. Horses use their tails to drive away mosquitoes and flies from their body.
Many animals make use of their tails for balancing their body. Gecko and feline species make use of their tail to balance themselves while on vertical walls or when they are crawling on rocks, trees and mountains. For monkeys, tail helps them to stand or sit on a branch steadily when they are moving from one branch to another. The tail of blue and gold macaws is very long so that it will help to balance the animal not to be turned upside down when they are perching.
Aquatic animals like beavers, fish, otters, sharks and alligators use their tails as propellers that can help them swim through water. The West African dwarf crocodile is known for hiding its legs and use only its tail to move inside water. Birds will use their tails to help them fly in the air. Male Peacocks make use of their attractive tails to drag their mate’s attention towards them. Many reptiles utilize their tails for escaping from their predators. Lizards use their tail for defending purposes.
Animals have tails for various reasons like for balancing, movement, to defend, for attracting mates, and to communicate.