Dinosaur 1 of 10 in Dinosaurs Are Back

Tyrannosaurus rex facts for kids

Say it: tie-RAN-oh-SORE-us rex. The name means “tyrant lizard king”. "Rex" is Latin for king.

  • Late Cretaceous
  • Meat-eater
  • About 12 m (39 ft)

This is the T. rex from the book, in 3D. Spin him around, or open this page on a phone or tablet and put him on your floor.

3D Tyrannosaurus rex from Dinosaurs Are Back, ready to stand in your room in augmented reality
Drag to spin. On a phone or tablet this opens AR.

From the last page of the book

Did you know?

Tyrannosaurus rex was so big and strong, it could eat up to 230 kilograms (507 pounds) of meat and bones in one bite!

Katia wrote ten “did you know” facts for the end of Dinosaurs Are Back, one for each dinosaur Spike meets. This is the T. rex one, and the film next to it reads it aloud.

A paper cut-out film of the book's pictures. Sound on.

Quick facts

Name means
“tyrant lizard king”
When
Late Cretaceous, 68 to 66 million years ago
Fossils found
USA and Canada
Size
About 12 meters (39 feet) long and about 7,000 kilograms (15,400 pounds)
Food
Meat

Source: Natural History Museum, London, Dino Directory, unless another source is named.

More wow facts

  • It had about 60 teeth, and the biggest were up to 20 cm (8 inches) long. That's about as long as a banana!

    Source: Natural History Museum, London

  • The most complete T. rex ever found is called SUE. SUE was found in South Dakota in 1990 and lived to be about 28 years old.

    Source: Field Museum

The Tyrannosaurus rex, the painting from pages 8 and 9 of Dinosaurs Are Back
Pages 8 and 9 of Dinosaurs Are Back, without the words.

In the story

Spike meets the T. rex

I felt so tiny next to him. He chased me for hours, and we were both screaming!

But when he ran out of breath, I finally explained everything, and he offered to help me. Now, whenever I blow into an empty zucchini, our secret signal, he comes running.

Spike, the young Triceratops who tells the story

Spike's baby brother, still an egg, has gone missing, and Spike sets off to find him. About the book

Questions kids ask

About the T. rex

What did T. rex eat?
Meat. It was so big and strong, it could eat up to 230 kilograms (507 pounds) of meat and bones in one bite!
What does Tyrannosaurus rex mean?
Tyrant lizard king. "Rex" is Latin for king.
Is T. rex the same as Tyrannosaurus rex?
Yes. T. rex is the short name.
Did T. rex live with Triceratops?
Yes. They lived at the same time, 68 to 66 million years ago.

Riddle · who am I?

A riddle about the T. rex

My teeth are as long as a banana, you see,but my arms are so short, I can't scratch my knee.
Need another clue?
I'm the king of the dinosaurs, everyone knows.Now run, run, run, before I nibble your toes!
Who am I? Tap to see
The Tyrannosaurus rex, a paper cut-out

Tyrannosaurus rex!

The clue explained: T. rex had about 60 teeth, and the biggest were up to 20 cm (8 inches) long, about the size of a banana. (Natural History Museum, London)

Every dinosaur page has a riddle. Try the flying one, or all the dinosaur riddles.

Cover of Dinosaurs Are Back, an interactive 3D dinosaur book in augmented reality

The book · ages 6 to 10

Dinosaurs Are Back

Spike's whole adventure, with the T. rex and nine more dinosaurs that step off the page and into your room with a phone or tablet.