Which animal uses echo location?

Echolocation is the ability of an animal to sense its surroundings by emitting sound waves and interpreting the echoes that return to it. This ability is used by many animals, including bats, dolphins, porpoises, and some birds.

Bats use echolocation to find their way around in the dark and to find food. They emit high-pitched sounds that are so high-pitched that humans can't hear them. These sounds bounce off of objects and return to the bat, which can then use the echoes to build up a mental map of its surroundings.

Dolphins and porpoises use echolocation to find their way around in the water, to find food, and to communicate with each other. They emit a variety of sounds, including clicks, whistles, and squawks. These sounds bounce off of objects and return to the dolphin or porpoise, which can then use the echoes to build up a mental map of its surroundings.

Some birds, such as swiftlets and oilbirds, use echolocation to find their way around in caves and other dark places. They emit high-pitched clicks that bounce off of objects and return to the bird, which can then use the echoes to build up a mental map of its surroundings.