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Old 07-29-2009, 11:02 PM   #1
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Default Moths Jam Bat Sonar, Throw the Predators Off Course

Moths Jam Bat Sonar, Throw the Predators Off Course
Matt Kaplan
for National Geographic News
July 17, 2009

Moths Jam Bat Sonar, Throw the Predators Off Course
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Developing ultrasound blasts to disrupt enemy sonar may sound more like a submarine arms race than animal evolution. But, believe it or not, some moths have done just that to evade hungry bats, a new study says.
Bats emit high-pitched cries, then listen as the sound waves bounce off nearby objects—allowing the bats to find and eat tiny insects in the dark, among other things.
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Yet bats aren't the only ones making waves.
Some tiger moth species make ultrasonic clicks with their bodies.
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Old 07-31-2009, 12:03 AM   #2
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Yowzer. That's impressive.
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