What it looked like
The Hadrosaurus was one of the first complete dinosaur skeletons found in the world. It stood on two strong back legs, and had a long stiff tail. The head had a shape rather like a duck bill, and had a rounded hump in front of the eyes and above the nostrils. From fossil skin impressions we know that their hands were webbed. It is called the duck-billed dinosaur.

What it ate
The Hadrosaurus was a herbivore, which means that it ate plants. Even though it lived near water, most of the plants were on land.

How it moved around
It walked like a duck, had a beak like a duck, webbed feet like a duck, and a pelvis like a duck.

How it probably behaved
Hadrosaurids spent most of their time on land. They stayed close to bodies of water, feeding on tough terrestrial plants. The discovery of their nests and their young show that they moved to higher ground to lay their eggs.