Bats: Roosting, hunting, and echolocation
A colony of bats leaves their roost at twilight to feed on insects.
Encyclopædia Britannica, Inc.
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Transcript
NARRATOR: Bats generally live in groups or colonies, roosting during the day in isolated places such as dark caves, cliff crevices, and abandoned buildings. It is at night that bats leave their roosts to forage. Most bats feed on insects, chasing down and capturing large quantities of their prey in flight. Bats are the only mammals that can truly fly.
Most species of bats possess the ability to orient acoustically by echolocation. They emit short high-frequency sound pulses that are reflected from objects in vicinity. The returning echoes are picked up by the bats' highly sensitive ears and are used to locate prey and avoid obstacles in the dark.
Most species of bats possess the ability to orient acoustically by echolocation. They emit short high-frequency sound pulses that are reflected from objects in vicinity. The returning echoes are picked up by the bats' highly sensitive ears and are used to locate prey and avoid obstacles in the dark.
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