Are Bats Really Blind?
No, bats are not blind. In fact, some can see very well. Bats do, however, come out mostly at night. They are not equipped with special eyesight possessed by other night-hunting animals such as owls and cats.
Instead, bats use their ears in place of eyes. A bat sends out high-pitched chirps as it flies through the dark. These sounds are echoed by anything in the bat’s path.
When the sound comes back to the bat’s ears, the bat can tell where the object is. Using echolocation, the bat can find its prey and snatch it in midair.
By listening to these echoes with its big ears, the bat can fly around obstacles safely. Thus bats are guided through the dark as a ship is guided by radar through fog.