Introducing Parasaurolophus! As suggested by its name, which means "near crested lizard," Parasaurolophus is known for having a large crest on its head. The cranial crest may had functioned as a visual guide between male and female, for increased hearing ability, and for control of body temperature. The dinosaur, or specifically hadrosaur (duck-billed dinosaur), could stand on two legs or all four. Like other hadrosaurs, many of which had odd skulls, Parasaurolophus is one of the most famous.
The distinctive feature is, of course, the cranial crest, which is colored red to distinguish it from the rest of the body. The hadrosaur's underside is yellow, so the warm color can complement the crest.