"We recognize the importance of reconfirming the sex of introduced animals, and will take precautions to ensure that this does not happen again," said the zoo
When Gen-chan arrived at a zoo in Japan in 2017, no one questioned whether the then-five-year-old hippopotamus was a boy. Seven years later, zoo staff made a surprising discovery: Gen-chan, now 12, was female.
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Japan zoo discovers male hippo is actually a female yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.