European researchers are developing a tool to help identify animal emotions through a vocal recognition system. It aims to help people who work with pigs identify whether the animals are in distress.

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Pigs are noisy creatures, from their contented oinks to their terrified squeals. But could those sounds contain clues to their emotions and welfare? An international team of researchers say so. For a ...

CHINA, Maine, Feb. 4 (UPI) -- Authorities said police responding to a report of screaming at a home in China, Maine, discovered the sound was made by an amorous pig. The Maine State Police said a ...

In recent years, Alex, the African gray parrot, developed a vocabulary of 150 words. PEPPERBERG: That's a good boy. Truck - good boy. ALEX: Want nut. PEPPERBERG: Well, you can have a nut. Go choose ...