Old World Fruit Bats May Have Once Relied on Echolocation

By Dr. Becker
There are more than 1,300 species of bats around the world, which together make up 1 out of every 5 mammalian species.1 Each night, bats feast on thousands of insects, which they easily locate in the dark night sky using laryngeal echolocation, which works similar to sonar.
As bats fly, they make high-frequency calls (too high-pitched for human ears to hear) that bounce off of physical objects in their surroundings. By listening to the returning echos, bats can form an acoustical …

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