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    Something’s Fishy: Regenerating Teeth

    When one of our adult teeth is knocked out by a baseball, we can’t just grow it back. But if a fish loses a tooth, it can grow a new one to replace it. How can we learn from our friends underwater? Researchers at the Georgia Institute of Technology and King’s College in London are now searching for a way for human epithelial tissue to grow back new teeth by studying the way the structures in Lake Malawi cichlids change into teeth and taste buds. The scientists also studied dental differentiation in mice. The results showed that the period during which the structures required for growing new teeth is active…