Bat chasing a moth [Credit: Aaron Corcoran]

Sonar-Absorbing Moths Evade Bats

Moths have acoustic camouflage to evade bat sonar.

Some bats eat insects, such as moths. The bats use echolocation (biological sonar) to track moths. Some moths have ultrasensitive ears to help the them evade bats. Others emit their own acoustic signals to confuse the bats.