Dinosaurs came in many sizes and shapes.
Birds are dinosaurs. They are alive today.
A Tyrannosaurus rex had about 60 big, sharp teeth.
A Triceratops had three horns on its big skull.
A Stegosaurus swung its spiked tail to defend itself.
An Ankylosaurus ate plants. Its tail ended in a heavy club.
A Spinosaurus ate fish. Its narrow snout was good for trapping them.
Flying pterosaurs and sea reptiles were not dinosaurs.
The Dimetrodon had a sail. It was not a dinosaur.
Only birds survived when the rest died out.
Words to know
- snout: long nose
- skull: head bones
- narrow: thin, not wide