Hadrosaur

Hadrosaur, HAD ruh sawr, is the name of a diverse group of dinosaurs with wide snouts resembling duck bills. These animals, also called duckbilled dinosaurs, lived about 97 million to 65 million years ago. Scientists believe hadrosaurs were among the most social of all dinosaurs. The animals probably lived in herds, nested in colonies, and took care of their babies.