Final answer:
Bats are the only mammals capable of true flight, and they use a unique structure of spread-out digits covered with a thin membrane to navigate. Despite the saying 'blind as a bat', bats are not truly blind, they use echolocation in conjunction with their vision. Biology explores these fascinating aspects of animal life and their interactions with the environment.
Step-by-step explanation:
Bats are mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more maneuverable than birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The phrase 'blind as a bat' is a common misconception; although bats use echolocation to navigate and find their prey in the dark, they actually have eyes and are not truly blind.
Biology is the science that studies living organisms and their interactions with each other and their environments. When studying biology, we consider all living things, from the smallest cells to the largest animals, and understand how they function, grow, and evolve within ecosystems and the biosphere.