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Mammals - A Multimedia Encyclopedia
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1990-06-20
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269b
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8 lines
Air traffic control: Many bats emit
pulsing ultrasonic cries and listen
with sensitive ears for echoes.
It's called %f,10,g\echoloca%echolocation. Thousands
of bats--like these gray bats--can
fly together in one cave, each
listening for its own sonar signals.