Rethinking The Lab Rat
b'For generations, scientists have leaned on seven key species, including rats and mice, for research. They\'re called model organisms and they\'ve been standardized over the year \\u2014 removing as much individuality as possible. But as research questions become more complicated, some researchers are turning to more niche critters to study. Host Regina Barber talks to reporter Anil Oza about the shift.
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