Chestbeats are made for all sorts of reasons, from a gorilla feeling good on a sunny day, to a gorilla showing off, to a gorilla warning someone that he's there and watching. Little baby gorillas learn to chestbeat and juveniles often chestbeat as a part of their play and games. A really upset gorilla may scream, much like high-pitched human scream. Gorillas live in family groups. Gorillas are skilled hunters of other animals.
Gorillas love to play.
Gorillas are aggressive and ferocious. Gorillas are gentle and peace-loving animals. King Kong was a real gorilla. Gorillas hatch from eggs like lizards. Gorillas are mammals.