Mountain Gorilla

Mountain gorillaGorillas (Gorilla gorilla) are the largest living primates. The Mountain Gorilla (Gorilla beringei) beringei) lives in the Virunga mountains in Africa. The Virunga mountains are a group of vulcanoes in East africa, bordering Uganda, the Democratic Republic of Congo, and Rwanda. Males weigh usually twice as much as females (up to 227 kilograms). There are 380 gorillas in 30 social groups, according to a study done in 2004. They live in groups which consist of the 'silverback', the leader; blackbacks (1 or 2); sexually mature females (3 to 4); and the infants and juveniles (3 to 6). The sizes of the group vary from 5 to 30 animals. Conflicts are often resolved by display which consists of the following steps (from wikipedia): The entire sequence has nine steps: (1) hooting slow to fast, (2) symbolic feeding, (3) rising bipedally, (4) throwing vegetation, (5) chest-beating with cupped hands, (6) one leg kick, (7) sideways running, two-legged to four-legged, (8) slapping and tearing vegetation, and (9) thumping the ground with palms to end display (Maple and Hoff 1982). The main threats for the mountain gorilla are war, poaching, human disease, and habitat loss.

Picture by Kurt Ackermann, licensed under Attribution License v. 2.5

The Gorilla, western gorilla is listed as Endangered (EN), considered to be facing a very high risk of extinction in the wild, on the IUCN Red List of Threatened Species

Namings for the gorilla
A young / baby of a gorilla is called a 'infant'. A gorilla group is called a 'troop or group (band)'.
Some facts about the

Adult weight : 139.842 kg (307.6524 lbs)

Maximum longevity : 54 years

Female maturity :2829 days

Male maturity : 4015 days

Gestation : 256 days

Weaning : 834 days

Litter size : 1

Interval between litters : 1397 days

Weight at birth : 2.061 kg (4.5342 lbs)

Weight at weaning : 12.595 kg (27.709 lbs)

Source: AnAge, licensed under CC

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