Hearing an eerie, laugh-like sound coming from the backyard may sound like the beginning of a scary movie, but for one Los Angeles resident, it ended in one of the most memorable wildlife encounters ...

Recent research has revealed that animals like dogs, rats, and chimpanzees might exhibit traits similar to human laughter. Patricia Simonet discovered a unique sound in dogs during play, while Jaak ...

For many years, psychologists and behavioral biologists agreed that laughter was a unique emotional expression found only in humans. However, as the study of animal emotions expanded this idea was ...