Stegosaurus
The stegosaurus is a large, plant eating dinosaur that lived about 150 million years ago in what is now the western United States. The stegosaurus had two rows of bony plates shaped like huge arrowheads sticking out of its back and tail. This dinosaur probably defended itself by swinging its heavy tail and hitting an attacker with its sharp spikes. The stegosaurus grew up to 30 feet long.

[picture of a stegosaurus]

Science Exercise

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