Why Do Bats Use Echoes to Navigate?

Imagine you're playing a game of hide-and-seek, but instead of calling out, you make a loud noise and listen for the echo that comes back. That's what bats do! When they fly through the air, they make sounds, like clicks or squeaks, and those sounds bounce off things around them, trees, buildings, even other bats. Then the bat listens for the echo to come back, which tells it where everything is. It’s kind of like having a built-in map made from sound.