Mole rat dental structure similar to a shark
Tuesday, October 11, 2011 - 12:30
in Biology & Nature
(PhysOrg.com) -- Sharks are capable of continually growing new teeth. As the teeth age, they fall out and new ones move forward similar to that of a tooth conveyor belt. Humans, and most mammals, on the other hand are only given two sets of teeth and must make them last. However, researchers have found there are exceptions to this rule and a new study published in the Proceedings of the National Academy of Sciences shows that the silvery mole rat is one of the exceptions.