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Dinosaurs · T. rex

T. rex: King of the Dinosaurs

Size, bite force, tiny arms, and whether T. rex had feathers.

T. rex — child-safe 3D illustration

Dinosaurs / T. rex

T. rex — what curious minds want to know

The famous meat-eater — bite force, tiny arms, and fossil clues.

~40 ft

Length

~12,000 lb

Weight (est.)

66M yrs

When it lived

North America

Home range

The basics

What was T. rex?

Tyrannosaurus rex was a huge theropod predator with a massive skull, banana-sized teeth, and a bite built for crushing bone.

  • Lived at the end of the Cretaceous period
  • Walked on two powerful legs
  • Name means “tyrant lizard king”

Mystery

Hunter, scavenger, or both?

Fossils suggest T. rex could hunt and also scavenge. Either way, it was near the top of its food web.

T. rex FAQ

Probably not a sprinter — big body, careful steps. Still scary up close.

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