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[breakingnews]

What, so those frat pledges can figure out if someone's actually getting something out of all those farm field trips?



Is Your Sheep Stressed? Just Ask It


WASHINGTON (Reuters) - Stressed-out sheep bleat out their anguish, U.S. researchers reported on Tuesday.

They found that, like humans, sheep communicate stress by changing the timbre of their voices.

Mark Feinstein of Hampshire College in Amherst, Massachusetts, said his findings could help farmers and, of course, the sheep they herd.

An expert in bioacoustics, Feinstein did his work at Teagasc, an Irish government agricultural research organization.

He isolated sheep and separated lambs from their mothers as part of his experiments -- then recorded their bleats.

His recordings suggest that sheep express stress by altering the timbre of their vocalizations, or the overall quality of sounds, rather than by changing pitch or loudness.

Stress can be measured by taking an animal's blood, but it would be much easier, cheaper and, yes, less stressful to simply listen, Feinstein said.