Gorillas are not the solitary creatures that they are often made out to be: They live in groups whose average size is about 16, which usually includes three adult males, six adult females, and seven “youngsters.” Listed below are the sizes of ten groups of mountain gorillas observe din the volcanic highlands of the Albert National Park in the Congo (166).

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Group 1 2345678 3 8 9 10 No. of Gorillas 8 19 5 24 11 20 18 21 27 16