When threatened, a gorilla will stand up and beat its chest with its hands. Gorillas are endangered because poachers set traps that kill the gorillas. Some gorillas live in wildlife sanctuaries in their natural habitat. This protects them. Others live in zoos, and other captive environments all over the world.
Gorillas are sexually mature at six to nine years of age.
At 1 year of age, the baby is partially weaned, but it stays with its mother for a least three years. Gorillas live about half as long as a human. They are also the most terrestrial of the great apes. Gorillas usually move by using their knuckles to support their upper body. They spend most of their day foraging for food, apart from a midday rest period.