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Chimp Flirting: Leaves Make a Loud Statement
22 Feb
Summary
- Chimpanzees flirt by tearing leaves, a behavior studied by Professor Cat Hobaiter.
- The gesture, called leaf clipping, is primarily used by males to attract females.
- Different chimpanzee communities show distinct leaf-clipping techniques, suggesting cultural variation.

Professor Cat Hobaiter, a primate behavior expert, has shed light on a fascinating aspect of chimpanzee courtship: flirting.
Adolescent chimps, particularly males, have been observed using a behavior known as 'leaf clipping' to express romantic interest. This involves deliberately tearing or ripping leaves near a potential mate, creating a distinct sound that can be heard from a distance. It functions as a non-verbal 'pick-up line' in the chimpanzee social world.
Further research, published in Scientific Reports, analyzed this behavior in East African chimpanzee communities in Uganda. The study identified distinct variations in leaf-clipping techniques between neighboring groups, such as 'leaf-clip' versus 'leaf tear-pull.'
These differences suggest that these courtship gestures are, at least in part, socially derived, highlighting cultural variations within chimpanzee communities. Professor Hobaiter noted there are now 150 known ape gestures, many resembling human actions.




