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Lab houses world’s largest collection of animal eyeballs

There’s one place in the world where you can look into the eyes of a giraffe and a polar bear—at the same time—and it’s a small room at the University of Wisconsin in Madison. The Comparative Ocular Pathology Laboratory, with over 56,000 specimens, has the world's largest collection of animal eyeballs, NPR reports. The specimens come from a variety of animal species, including okapi, platypus, and sloth, and are embedded in paraffine wax as soon as they arrive to the lab, where scientists study them to help vets diagnose and treat eye diseases.

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