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Old 12-11-2010, 11:52 AM   #1
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Default Whistling Caterpillar!

ScienceShot: Whistling Caterpillars Shake Off Predators - ScienceNOW

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When the team used forceps to simulate the peck of a bird's beak, the caterpillars forced air through the small holes on either side of their body—normally used for breathing—to produce a high-pitched whistle. When yellow warblers heard the noise, these natural enemies of the caterpillars hesitated, jumped back, or flew off. The sound may have startled them, or perhaps they found the tune indigestible.
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Old 12-11-2010, 12:21 PM   #2
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I can't believe I just LISTENED to a caterpillar...
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Old 12-11-2010, 05:17 PM   #3
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Very cool!!!
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Old 12-11-2010, 05:48 PM   #4
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It sounds almost electronic, doesn't it?? That sure would startle me!
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Old 12-12-2010, 01:32 PM   #5
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Forcibly expelling air through spiracles also is used for sound production in other arthropods, including the well-known Madagascar hissing cockroach and some tarantulas (see Barking spider - Wikipedia, the free encyclopedia).
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behavior, caterpillar, caterpillar behavior, caterpillar noise, caterpillar sound, caterpillars, insect, insect sounds, insects, noise, predator and prey, predatory, prey, sound, sounds, whistle, whistling, whistling caterpillar

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