A study co-authored by James Clark, the Ronald Weintraub Professor of Biology, has discovered that a species of dinosaur, Limusaurus inextricabilis, lost its teeth in adolescence and did not grow another set as adults. The finding, published today in Current Biology, is a radical change in anatomy during a lifespan and may help to explain why birds have beaks but no teeth.
No Teeth? No Problem. Dinosaur Species Had Teeth as Babies, Lost Them as They Grew
December 22, 2016