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This is Scientific American 60-Second Science. I'm Cynthia Graber. This'll just take a minute.

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The thieves arrive under cover of darkness, to steal crops.

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Farmers try to ward off the raiders with drums, firecrackers, electrified fences, even poison.

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The conflict kills hundreds of people annually.

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And hundreds of the thieves also die.

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But hungry elephants keep returning to pilfer cropland at night in India.

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Now farmers may have an effective new tool: a tiger growl.

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Researchers recorded tiger and leopard sounds in a Bangalore zoo.

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Then they set up playback systems in southern Indian villages near two wildlife refuges, an area known for elephant crop raids.

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For six months, when marauding elephants attempted to raid a field, they might have triggered the tiger recording or this one of a leopard.

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When the elephants heard the leopard, they trumpeted and loitered for a while.

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But when they heard the tiger, which is known to kill baby elephants, they backed off quickly and quietly.

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The report is in the journal Biology Letters.

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Should the tiger sounds work, and save crops, people and pachyderms, farmers may say "They're great!"

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Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.

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