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고맙습니다.퀴즈는 맞는데 이 문제 뿐이어서 죄송합니다.

Parasaurolophus was a long-crested, duck-billed dinosaur. Its extremely long, backwards-leaning, hollow, bony crest was as bigger than the rest of its skull and may have been used to produce a low-frequency, foghorn-like sound, enhance its sense of smell, and/or used in courtship displays.   

Parasaurolophus grew to be about 40 ft (12 m) long and 8 feet (2.8 m) tall at the hips. It weighed about 2 tons. It had pebbly-textured skin, a spoon-shaped beak, and a pointy tail.

 It had a toothless, horny beak and numerous cheek teeth.

Parasaurolophus may have been a herding animal; it may have migrated from shorelines to higher ground to reproduce.

Parasaurolophus was an herbivore, eating pine needles, leaves, and twigs. Fossilized stomach contents have been found, consisting mostly of land plants

설명은 이곳에서 가져왔습니다

http://www.enchantedlearning.com/subjects/dinosaurs/dinos/Parasaurolophus.shtml 

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