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thank you. Right now, there's not a pregnancy test for polar bears. So one of our biggest goals is to develop some sort of pregnancy test in which we can determine whether or not a polar bear it's pregnant, based on a single people sample.

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Zoos from all over the country and beyond are sending poop to Cincinnati. But this isn't some weird prank -- it's for science, we swear.The Cincinnati Zoo actually has the biggest collection of polar bear poop in the world.The team of scientists at the Center for Conservation and Research of Endangered Wildlife is committed to saving polar bears and has been working tirelessly to create a pregnancy test for them.Polar bears frequently "punk" scientists with what's called a pseudopregnancy, where they exhibit the signs of pregnancy, but aren't actually pregnant at all.A pregnancy test would help caretakers better manage bears in their care, and provide clues as to where the pregnancy process might be failing.Researchers like Dr. Erin Curry hope fecal matter holds the key.So they have nearly 30,000 samples from across the United States and Canada stored two different ways.Some of the fresher samples are kept in a freezer, while others that have been dried are appropriately housed in the back of a boys bathroom. Curry said some of the fecal matter they receive is more exciting than others. For zoos that have multiple bears, they have to differentiate the poop. To do so, some feed their bears glitter or food dye (all safe).So it's not totally uncommon to receive sparkly, colorful poop in the mail.Since developing a test has been quite the challenge, the zoo has enlisted some super smart neighbors to help. The zoo said it is collaborating with Children's Hospital on the research. While research is done, the zoo continues to cross all fingers that their polar bears will have a cub soon. Mating season is getting close and Curry says the pair seems to be cozying up already.