Pigs do a lot of grunting, snuffling, oinking and squealing. Paying attention to what they say could help the farmers raising them. Via InsideScience.
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It turns out that pigs are among the most talkative farm animals, so their vocalizations have often been studied to find out what they're saying.Briefer's team compiled 7,414 pig calls from 411 animals that had been recorded since 2013 by several different research groups.
The second stage of the study was determining how to make sense of the thousands of pig grunts in their database. The researchers compared two machine-learning methods that sorted through the grunts, classified each of them as either positive or negative, and tried to identify the situation where it was expressed.
Such a high level of accuracy could be good news for pigs on farms -- the exact number is unknown, but there are estimated to be more than 650 million around the world.
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