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Japan zoo has been trying to mate two male hyenas for four years

Japan zoo has been trying to mate two male hyenas for four years

A Japanese zoo has been trying to mate two hyenas for the past four years, not realizing they are both male.

The Maruyama Zoo in Sapporo, Japan was forced to admit the blunder after four years of trying to get the two hyenas to mate, believing one of them was female.

The zoo was given the two spotted hyenas, Kami and Kamutori, in an exchange with a South Korean zoo in 2010 believing they were a male and female pair.

After two years of attempting to get the pair to mate, the zoo conducted a gender test and realized why the hyenas were not taking to each other.

‘We have attempted to house them together for breeding many times but they often fought against each other and never engaged themselves in breeding behaviour,’ said the zoo in statement.

‘We have determined that the two animals are both male after conducting ultrasound imaging and hormone tests on them under anaesthesia.

‘We still plan to obtain a female spotted hyena for breeding with either Kami or Kamutori.’

Zookeepers added it’s very difficult to determine the gender of a spotted hyena by inspecting their external genitalia.

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