Why do gorillas beat their chests?
Show answer & explanation
Answer: Intimidation and communication
Exercise for arm muscles — Wrong. Not exercise—territorial and social display. Chest beating demonstrates strength, warns rivals, communicates location to group.
Intimidation and communication ✓ — Correct! Acoustic display! Gorillas (males especially) beat chests for: (1) Intimidation—show strength to rivals/predators. (2) Communication—travels through forest (location announcement). (3) Conflict avoidance—display power without fighting. (4) Excitement/stress release. Technique: cupped hands on chest (loud drumming sound). Silverback males do it most. Accompanied by charging display, vocalizations. Size/strength indicator—larger males, louder beats. Can be heard 1km away! Complex social communication—body language + sound. Prevents dangerous fights!
Gorillas beat rhythm for dancing — Wrong. Gorillas don't dance. Chest beating is intimidation display and acoustic communication—showing strength and announcing presence.
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