At 1,100 pounds, Utahraptor is the largest known dromaeosaur, and is thought to have been one of the fiercest dinosaurs to have ever lived.
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What It Eats
How Big It Is
23 feet long, 1100 pounds
Where It Lived
Utah, United States, North America
When It Lived
135 - 130 Million Years Ago
Utahraptor had enlarged toe joints so that its massive killing claw could be raised up and backward to avoid damage while running. But when used in attack, its claw flexed forward as the animal kicked out.