Beloved San Francisco Zoo gorilla Oscar unexpectedly dies at 43: 'We are heartbroken'
San Francisco Zoo & Gardens is mourning Oscar Jonesy, its beloved 43-year-old lowland gorilla and leader of the zoo's gorilla ...
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The Imperiled Mountain Gorilla: A Grim Struggle for Survival
(A male gorilla is called a silverback when ... and Group 8 fell apart because of the death of its aged leader, my specially cherished Rafiki. The collapse of Group 8 threw a spotlight on the ...