Largest of the Great Apes, gorillas are in serious danger of becoming extinct in the wild.

Although they look scary they're actually very peaceful animals, but don't get on their wrong side because they're easily strong enough to kill a human.

Dian Fossey was a famous gorilla scientist, her story was told in the film Gorillas in the Mist starring Sigourney Weaver.

A famous gorilla (to Britons at least) was Guy who used to live at London Zoo.