Bats have strong flying ability, and are also natural reservoirs of many kinds of human and animal viruses, which can carry dozens of viruses. Bats have adapted to the ability of flying and living at night, and their physiological functions have undergone a series of important changes.
Usually bats have poor eyesight, but their hearing is extremely developed. They can fly freely at night or in a very dim environment and capture food accurately. 70% bat species mainly feed on insects and other small arthropods;
Other species mainly feed on fruits, nectar and pollen; Some tropical species are carnivores, and three vampire bats feed on blood. Distributed in all parts of the earth except the north and south poles and some ocean islands.