![]() Females transfer to another group before breeding, which begins at eight to nine years old they care for their young infants for the first three to four years of their lives. A dominant male silverback heads the group, with younger males usually leaving the group when they reach maturity. Such groups are composed of at least one male, several females and their offspring. Western gorillas live in groups that vary in size from two to twenty individuals. The Cross River gorilla differs from the western lowland gorilla in both skull and tooth dimensions. Another source describes the weight of wild male western lowland gorillas as 146 kg (322 lb). Captive western gorillas average 157 kg (346 lb) in males and 80 kg (176 lb) in females. Males average 167 cm (5 ft 5.7 in) although reaching a height up to 176 cm (5 ft 9.3 in), with males having an average weight of 168 kilograms (370 lb) and females weighing 58 to 72 kilograms (128 to 159 lb). Western gorillas have black, dark grey or dark brown-grey hair with a brownish forehead. Western gorillas are generally lighter colored than eastern gorillas. Western gorilla Description Comparison with a 1.75-metre (5 ft 9 in) human (right) Only 250 to 300 of the only other western gorilla subspecies, the Cross river gorilla, are thought to remain. ![]() Nearly all of the individuals of this taxon belong to the western lowland gorilla subspecies, whose population is approximately 95,000 individuals. Western lowland gorilla ( Gorilla gorilla gorilla)Īngola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea and Gabon. The population is recognised as two subspecies: The author selected the specific epithet for the name given by Hanno to "wild men" he had noted on the east coast of Africa, presumed by Savage to be a species of orang. Both subspecies are listed Critically Endangered.Ī formal description of the species was provided by Thomas Savage in 1847, allying the new species to an earlier description of the chimpanzee as Troglodytes gorilla in a group of eastern simians he referred to as " orangs". Two subspecies are recognised for the western lowland gorilla ( Gorilla gorilla gorilla) is found in most of West Africa while the Cross River gorilla ( Gorilla gorilla diehli) is limited to a smaller range in the north at the border of Cameroon and Nigeria. It is the second largest living primate after the eastern gorilla. Large and robust with males weighing around 168 kilograms (370 lb), the hair is significantly lighter in color than that of the eastern gorilla, ( Gorilla beringei), and geographically isolated from them in a region at the midwest of the African continent. The western gorilla ( Gorilla gorilla) is a great ape found in Africa, one of two species of the hominid genus Gorilla. By doing this, they benefit many other animals in the area and even help sustain the habitat of humans, who live in and around the forests.Cross River gorilla ( Gorilla gorilla diehli) They are key seed dispersers of tropical rainforests, creating suitable places for the seeds to grow and thus sustaining a number of plant species. Western gorillas are an important link in the ecosystem of their habitat. Currently, this species is classified as Critically Endangered (CR) on the IUCN Red List, and its numbers today are decreasing. The IUCN Red List and other sources don’t provide the number of the Western gorilla total population size. Presently, one of the most notable threats to this species is the Ebola virus: despite the conservation status, outbreaks of this virus are still a serious concern for the Western gorillas' population. ![]() On the other hand, excessive collection by zoos and research institutions has brought to a sharp decline in their population, making the animal an endangered species. They have been persecuted, hunted for meat and big games, and captured for commercial trade. For over a century, Western gorillas have suffered from the degradation of their tropical rainforest habitat. These animals are primarily threatened by human activities.
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