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What did they look like?
The Anatosaurus may have grown as big as 13 meters long and 6 meters tall with over 1000 teeth. It could walk on two legs and on four legs — probably on four when it was in a hurry — and is common called "duck-billed dinosaur".
What did they eat?
Anatosaurus ate plants. They would have been able to reach shrubs and, for the larger ones, trees up to about four meters above the ground.
When did they live?
Anatosaurus lived around 65 million years ago, in the Cretaceous.
Where did they live?
In the current North America. They have been found in Montana, Wyoming, Colarado, the Dakotas, and Saskatchewan.