How do bats see at night?

Bats use a type of sonar called echolocation.  They make a clicking sound and the sound waves bounce off of the object and back again.  Bats can accurately target their prey or avoid obstacles using echolocation.  Ever hear that saying, “Blind as a bat?”  Not true.  Bats are not blind.  They also use their eye vision to maneuver through the night sky.