Dinosaur species turned vegetarian after losing teeth: Study
China-based scientists recently discovered a dinosaur species called the Limusaurus that developed sharp teeth for eating meat after birth, but lost them after reaching adulthood, thereafter becoming vegetarian. By comparing 19 fossilised remains of the two-legged dinosaur, scientists found that the Limusaurus' teeth transitioned into a toothless beaked jaw as the bird-like species grew up.