Honking Hadrosaurs

October 2008
Weekly Reader - Edition 2;Oct2008, Vol. 78, Special section p2
This article presents information on hadrosaurs, also known as duck-billed dinosaurs. Hadrosaurs were plant eaters. They moved in herds or groups. Some hadrosaurs had head crests. These were made of a long piece of hollow bone. Scientists believe that the crest was like a trumpet. Hadrosaurs used their crests to make sounds and send signals to one another.


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