Mongo the chimp
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Mongo the hairless chimp dies suddenly at Twycross Zoo

A hairless chimpanzee from Twycross Zoo that became an internet hit has died suddenly.

Mongo, 22, who had alopecia, was undergoing a routine health check but failed to come round from the anaesthetic.

A film that appeared to show him in a fight was viewed more than a million times online, fuelled in part by Mongo's appearance.

Twycross Zoo said it was "displaying" rather than fighting and was perfectly normal behaviour for chimpanzees.