Hadrosaurs are known as duck-billed dinosaurs because of their head resemblance to modern ducks. They are thought to have often lived in large herds and left behind a “dinosaur graveyard” just as large.
Hadrosaurus are terrestrial inhabitants of open areas. Platybus dinosaurs had long hind legs and shorter front legs.
They relied mainly on four legs to feed and two legs to flee from attackers. Some hadrosaurs are also thought to have had scales on the back of their heads.