Hot Lesbo Sex!!!1

Or not:

Handlers of a popular polar bear, brought to mate with a female in a zoo in northern Japan, found their breeding plan was doomed when they noticed that he, in fact, was a she.

"We thought he was a male, so we never had any doubts as we took care of him," she said.

"But one day we realized that the two bears urinate in the same way, and we thought, is that how males do it? And once we started to look at things that way, we weren't quite so sure."

After two DNA examinations of Tsuyoshi's hair and a manual exam, the Kushiro Municipal Zoo found Tsuyoshi to be a female.

I'm guessing the "handlers" (ahem) at the zoo don't get out much. There are places in Japan where not being able to read subtle indications of sex could land you in a rather embarrassing situation along about two in the morning. Being unable to tell the difference between genitalia could lead to more than just embarrassment...