The wild orangutans

Published: Saturday 04 July 2015

A researcher from the Bronx Zoo-based Wildlife Conservation Society (WCS) has observed homosexual behaviour among orangutans in Sumatra. This is the first time scientists have witnessed the activity among wild populations of these critically endangered great apes. "My study adds orangutans to the list of primates that demonstrate homosexual behaviour," said ElizaBeth Fox, the researcher (, December 10, 2001).

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