Dinosaur - T. Rex

Facts of Tyrannosaurus Rex Dinosaurs for Kids

The Dinosaur T. Rex was one of the greatest predators that ever lived.

Find out about its size, habitat, diet and more!

Tyrannosaurus Rex had powerful back legs that let it hunt prey over short distances at up to 20mph (32 kph). They would have charged out of the undergrowth to surprise their prey - and their flexible neck helped them adjust the angle of attack.

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Tyrannosaurus Rex Fast Facts

  • Tyrannosaurus Rex means 'Tyrant Lizard'.

  • T. Rex were one of the biggest meat eaters.

  • The largest T. Rex tooth found is 12 inches (30 cm) long.

  • They could sprint up to 20 mph (32 kph).

  • Their length was up to 12 metres (40 feet).

Dinosaur T. Rex - Tyrannosaurus Rex Picture

More Tyrannosaurs Rex Dinosaur Details

T. Rex were one of the biggest carnivores (meat eating dinosaurs), but not the biggest! Giganotosaurus, Spinosaurus and Carcharodontosaurus were bigger.

Want to know more? Here is a Spinosaurus vs T. Rex size comparison.
T. Rex Dinosaur Timeline

They lived about 65 to 70 million years ago - in the late cretaceous period.
Tyrannosaurs Rex Skeleton Picture - T. Rex Skull


The T. Rex had quite a large brain for a dinosaur. This would have helped it hunt better! Large parts of its brain helped its vision and smell - it may have even had telescopic vision.

Even more terrifying was its mouth full of 8 inch (20cm) teeth - long and sharp, like knives.

Its dinosaur classification is Saurischia.
Triceratops Dinosaur Facts

More questions you may have :

  • What did T Rex eat?

    Tyrannosaurus Rex were meat eaters. They probably hunted Hadrosaurs and Triceratops. They would have also scavenged - stealing meals from smaller predators.


  • Where did T. Rex live?


  • Do you think Tyrannosaurus Rex lived in Australia? A new discovery shows it may have! So where did tyrannosaurus rex live?

  • How big was Tyrannosaurus Rex?
  • Dinosaur T Rex Size - Size of Tyrannosaurs Rex

    Tyrannosaurus Rex were 12 metres (40 feet) in length and weighed 5 tons. Their heads were over 4 feet (1.25 metres), with very powerful jaws.
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