First, you tell him that a bat is lying on all fours on the ground. If it wants to fly away like a bird, its wings will open and the resistance will be great. If it doesn't make an initial jump like a bird, it must have altitude to make the necessary glide.
Bats belong to the order Chiroptera and are the second largest group in the animal kingdom, after rodents. After a long period of evolution, bats are the only mammals capable of true flight. There are 961 species of bats divided into 19 families, 185 genera, and they are distributed almost everywhere in the world, with the exception of some islands in the polar regions and oceans, especially in the tropics and subtropics, the number of bats is the greatest. Most bats rest during the day and come out to look for food at night. Fly in the skynocturnal, attack mosquitoes, moths and other insects. There are also a few bats that eat fruit or suck the blood of other animals.
Bats inhabit caves, rock crevices in mountains, caves in trees, as well as crevices, ceilings and partitions of old buildings. Some fruit bats in tropical and subtropical regions also hide under palm and banana trees. . If you see bats at rest, you will definitely notice that their sleeping posture is very strange. Other animals sleep standing up, but they sleep upside down, with their heads down. Why is this? It turns out that this is the result of long-term evolution and is part of their lifestyle habits and defensive instincts.
Flying Mammals
People often use the term "birds and beasts" to describe the characteristics of birds and dare beasts, but this statement is a little too generalized, because birds are not all the birds in the world. species can fly, such as penguins, ostriches, emus, kiwis, etc. ; likewise, not all beasts of the species can walk, like whales in the ocean. Bats are even more unique. They are mammals, but they cannot walk on the ground like ordinary land mammals. However, they can fly in the sky like birds, and some species of bats are also flight experts. relatively narrow places. In the animal kingdom, bats are the only mammals capable of flapping their wings and flying in the sky.