Describer (Date): Savage (1847)
Order: Primates
Family: Hominidae
Subfamily: Homininae
Genus: Gorilla
Species: gorilla
Subspecies: gorilla

Body Weight: M 135-600 lbs/ F 150-310 lbs
Height: 4 - 5.75 ft 
Pelage: Black short fur, top of head is brown, face hairless

Range: West & Central Africa
Habitat: Tropical & montane rain forests
                 Including forest swamps
IUCN Status: Critically Endangered
CITES Appendix: Appendix 1
Population in Wild: 175,000 to 225,000
ISIS captive population : 755

Locomotion: Quadrupedal knuckle walking / cautious climbers
Activity Cycle: Diurnal
Social Groups: 4-6 adults.  Male silverback dominates
Diet: Leaves, stems, pith, fruit, seeds, insects
Predators: Man, leopard

Sexual Maturity: M: 12-15 yrs, F:  8.5-10 yrs
Gestation: 8.5 months
Birth weight: ~4.4 lbs
Age at Weaning: 3+ years
Longevity: 30-40 years in wild, 50 in captivity

Feature Facts: Largest primate.  Westen gorilla is only species in zoos
Society Press: Mbongo and Ngagi, eastern lowland gorillas, were bought from Martin and Osa Johnson as a "breeding pair" in 1931.  Later it was discovered that both were male