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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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 ...