"Great Apes Display Human-Like Humor Through Teasing, Study Finds"

Researchers have detailed how great apes playfully tease, suggesting the human cognitive tools that help us learn humor may date back at least 13 million years. The study observed 18 different types of good-natured teasing behaviors across four species of great apes, such as poking, hitting, hindering movement, body slamming, and pulling on another's body part. Playful teasing is distinct from other play behavior and is usually one-sided, with the teaser initiating an action toward a target. This behavior is seen as entertainment and also helps juveniles better understand their social partners, providing vital information about growing up within a social group and establishing hierarchies.