Boy did we get it wrong

Or should that be Girl did we get it wrong.

Experts had been confounded by the lack of chemistry between Tsuyoshi, a polar bear named after a popular male Japanese baseball player, and a female bear called Kurumi.

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But earlier this month Tsuyoshi was put under an anaesthetic in order to undergo a gender check up ­ and after conducting DNA tests on the bear's hair, zookeepers were surprised to be informed that he was in fact a she.

A little gender confusion from the best minds in Japan. The claim is that the bear's long hair covers the "identifiable parts" yet they still needed DNA to be sure. Turns out that his her brother sister had the same little "problem" .