Dinosaurs came in many sizes. They came in many shapes. Birds are dinosaurs. They are still alive today.

Brachiosaurus was huge. It was very tall. It ate plants. It had four legs. It had a long neck. It had a long tail. It fed on leaves from tall trees.

Tyrannosaurus rex had about 60 big, sharp teeth. Triceratops had three horns. Its head was big.

Velociraptor was small. It ate meat. It was about the size of a turkey. It had feathers. It could not fly.

Fish were the food of Spinosaurus. Its jaws were narrow. That shape was good for trapping them.

Some flying animals were not dinosaurs. Some animals in the sea were not dinosaurs. They lived in the same age.

A giant asteroid hit Earth about 66 million years ago. As of November 2026, scientists link it to their end. Birds were the only dinosaurs that survived.

Words to know

• huge: very big
• asteroid: space rock
• feathers: bird covering