Dwarf Dinosaur Sported Lumpy Tumor on Its Face

During its lifetime about 69 million years ago, a duck-billed dinosaur dwarf walked around with a tumor on its lower jaw, though the unusual growth likely didn't cause any pain, a new study finds. "This discovery is the first ever described in the fossil record and the first to be thoroughly documented in a dwarf dinosaur," one of the study's co-authors, Kate Acheson, a doctoral student of geology at the University of Southampton in England, said in a statement. Researchers found the fossils in