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16 famous animal conservationists

Sept. 9, 2013, 9:30 a.m.
8 of 18

Birute Galdikas

Another member of "Leakey’s Angels," Birutė Galdikas took on the cause of orangutan conservation and is now known to be a top authority on these fascinating primates. She studied orangutans in their Bornean habitats and has since focused on rehabilitating orphaned orangutans and advocating for the species’ protection. She founded the Orangutan Foundation International to preserve their rain forest home.