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Text: Gallery Interactives. Games and facts from our galleries. Illustrations: Silhouettes of animals, from our gallery icons.
Who's Hip?
Dinosaurs are divided into two main groups. One is called the saurischians and the other the ornithischians. The way to tell them apart is by their hips. Saurischian means lizard-hips and you can tell a saurischian hip bone because this bone in front, called the pubis, sticks out. With ornithischians -- a word that means bird-hipped -- the pubis bone is turned backwards.
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