How do bats navigate and hunt in complete darkness?
Quick Answer
Most bats use echolocation: they emit high-frequency sounds and listen for echoes to map their surroundings. This lets them detect tiny insects, obstacles, and even the texture of objects in flight.
The Full Story
Bats that echolocate send out calls through the mouth or nose, then process the returning echoes with extremely sensitive hearing. The time delay tells them how far away an object is, while changes in pitch and loudness help reveal size, shape, and movement. Some species can detect objects only a few millimeters across, which is why bats can catch insects in near-total darkness. Echolocation is one of the most sophisticated navigation systems in the animal kingdom and evolved independently in bats and toothed whales. Not all bats use it equally; fruit bats rely more on vision and smell, while many insect-eating bats depend on sound.
Key Facts
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"How bats “see” with sound in the dark"
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