![]() ![]() ![]() Infant gorillas normally stay with their mother for 3 to 4 years and mature at around 11 to 12 years old. The baby gorilla can crawl at around 9 weeks old and can walk at about 35 weeks old. Gorilla infants are breast feed for about 12 months. Baby gorillas are carried around by their mothers and begin to walk after 30 – 40 weeks. A baby gorilla is born weighing 1.8 – 2 kilograms (4 – 4.4 pounds) after a gestation period of 251 – 295 days. Fights for access to female gorillas among dominant silverbacks and lone males are intense and may result in death.Īdult female gorillas give birth to one baby about every 4 years although a surviving infant is produced only every 6 to 8 years due to high infant mortality in the first 3 years of life. ![]() Once a male gorilla has established a group, he will most likely stay with that group for life unless he is ousted by another male gorilla. About half of all male gorillas leave their natal group at puberty and travel alone or with other subordinate male gorillas until they establish their own group. Male Eastern Lowland Gorillas mature later than female Eastern Lowland Gorillas and do not breed until 15 to 20 years of age. mother/daughter, sisters) will groom one another. The bonds between these unrelated adult female gorillas are loose and only related female gorillas (e.g. Larger groups of 15 – 20 members and even up to 30 members, have also been recorded.įemale Eastern Lowland Gorillas leave their birth groups to join other groups or single male gorillas when they reach sexual maturity at around 7 or 8 years of age. Subordinate male gorillas may also be found in the groups. Each family group usually includes a dominant silverback male gorilla, three unrelated adult female gorillas and four or five young gorillas. The Eastern Lowland Gorilla has a well developed social structure and they live and travel in family groups. Male Eastern Lowland Gorillas are almost twice as large as females. Adult males stand 175 centimetres (69 inches) tall and weigh 165 kilograms (360 pounds). Like other gorillas, the eastern lowland gorilla has small ears and broad nostrils. Like the Western species of gorilla, the Eastern Lowland Gorillas walk on all fours, however, they use the knuckles on their hands instead of their palms.Įastern Lowland Gorillas are more robust in appearance than the Western Lowland Gorillas, having longer teeth, a stronger jaw and a broader body.Įastern Lowland Gorillas have black coats which in males, like other gorillas, turns silver at the back as the animal matures. The Eastern lowland gorilla (Gorilla beringei graueri) is found only in the tropical forests of eastern Zaire, Africa. ![]()
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