Gorillas are the largest of the great apes and are found in only nine African countries.
Traditionally they have been regarded as one species with three sub species, but some scientists have recently proposed that the differences between the eastern and western populations are sufficient to regard them as separate species, each with sub-species.
First systematic study of Gorillas
Dian Fossey begins study at Kabara, Congo
The gorilla, Digit, killed by poachers
Dian Fossey Gorilla Fund International founded
UN Year of the Gorilla
Learn more about the Gorilla's habitat by watching Earth's Green Heart - Africa.