Dinosaur - T. RexFacts of Tyrannosaurus Rex DinosaursThe Dinosaur T. Rex was one of the greatest predators that ever lived. Find out about its size, habitat, diet and more! Sponsored Links Tyrannosaurus Rex Fast Facts
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More Tyrannosaurs Rex Dinosaur Details
T. Rex were one of the biggest carnivores (meat eaters), but not the biggest! Giganotosaurus, Spinosaurus and Carcharodontosaurus were bigger.
They lived about 65 to 70 million years ago - in the cretaceous period.
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.
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.
More questions you may have :
Tyrannosaurus Rex were meat eaters. They probably hunted Hadrosaurs and Triceratops. They would have also scavenged - stealing meals from smaller predators.
Do you think Tyrannosaurus Rex lived in Australia? A new discovery shows it may have! So where did tyrannosaurus rex live?
Tyrannosaurus Rex were 12 metres (40 feet) in length and weighed 5 tonnes. Their heads were over 4 feet (1.25 metres), with very powerful jaws.
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