Pet owners often recognize the sounds their dogs or cats make that convey distress, excitement, fear, and other emotions. Researchers in Copenhagen wanted to discover if the sounds pigs make also express emotion. They studied pig vocalizations, including grunts and squeals, to find out what they might mean. Listen to hear why researchers wanted to know more about pig communication, and learn how their findings could help pig farmers and consumers.
Story Length: 2:08
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