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Benlina Aier, a psychology major, researched animal behavior at Lincoln Park Zoo. She observed species including polar bears and African lions, to look for clues about animal welfare. DePaul University students presented posters of their own research at the College of Science and Health's 12th Annual Natural Science Mathematics and Technology Undergraduate Research Showcase November 7th, 2014 in the McGowan South science building on the Lincoln Park campus. (DePaul University/Jeff Carrion)