Chiroptera generally refers to bats, which are the only mammals that can truly fly. In addition to the characteristics of general mammals, there are also a series of morphological characteristics adapted to flight. Bats have strong flight capabilities and are also natural hosts for a variety of zoonotic viruses, capable of carrying dozens of viruses. Bats can be divided into two suborders. There are 16 families, 185 genera and 962 species in the world. There are about 7 families, 30 genera and 1