Gorillas live about 35 years in the wild and more than 50 years in a zoological environment. The mortality rate for immature gorillas under six years of age is over 40% and the risks are highest during the first year. Fighting silverbacks, predation, injury, and disease are all serious threats to youngsters that lessen as the apes reach maturity. However, the risks continue throughout life (Nowak, 1991).
Scientific Classification|Habitat and Distribution|Physical Characteristics and Special Adaptations|Senses|Behavior|Diet and Eating Habits|Reproduction|Birth and Care of Young|Communication|Longevity|Conservation Issues|Bibliography|Specific Index
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