Why does the bat sleep upside down?

 Bat  or bat is one of the mammal animals that is characterized by its  ability to fly, and is one of the animals that draws attention and show  the ability of the Creator Almighty in his creation, it is an organism  is characterized by a large number of characteristics that distinguish  him from other organisms and that give him a broken individual peer. Bats  are divided into two important groups: the small bats and the large  bats. Small bats depend on different types of foods and are found in  many places in different parts of the globe. Bats rely heavily on fruits  and are less common. Of small bats and are dependent on their nutrition on all fruits and spread in Africa, Australia and India significantly.

Source

Bats  are active at night and in the early dawn times only. They are beings  that love darkness and live in it only. They have many wonderful  benefits. They produce nitrogen in the form of a substance called  gouano, which is considered as fertilizer for soil. An important enemy of insects tonight, working to rid the environment of them.
The  bats sleep with their heads down, so they do not consume a lot of  energy. They are related to a tree or similar and their head is turned  down. This also gives them the ability to fly again easily and quickly.  They also have a sonar. When the waves are hit by a barrier that is reflected and picked up  by the bat, the catches use the sonar so that they do not hit the  obstacles and to locate the prey and food, which is very important to  them.

Bats  wings from the inside contain the bones of the hand. There are two  layers of the bat wing, and there is a free thumb claw that helps him to  fix himself with branches of trees or the like during sleep. Bats also  cover long, silky fur and the length of the ears. The  bats do not use their eyes for sight. Most of the bats live on insects  as food. There are large species that rely on fish, birds, reptiles,  frogs, etc., They are bloodsuckers, and there Who lives on plants and fruits