Bats make up about one-fifth of all mammal species.
What are mammals?
Mammals are vertebrates which fmgive birth to their young ones alive.
Mammals have mammary glands from which they feed their babies.
Mammals include:
Bats are mammals that can fly.
Bats belong to the order Chiroptera.
Bats make up about one-fifth of all mammal species.
Learn more about mammals at: https://brainly.com/question/24275
