MUST-WATCH: Dinosaur runs 'America Ninja Warrior' style obstacle course

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The dinosaurs might not have gone extinct if they'd practiced their ninja skills.

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In a display of "Jurassic Parkour", Reko Rivera runs an American Ninja Warrior-style training course in an inflatible Tyrannosaurus Rex suit.

The video by Brentwood Photography is part of a series of silly challenges done in the T-Rex suit.

Rivera does a pretty good job despite the T-Rex's historically short arms -- though perhaps this one should be called T-FLEX.

Go hard or go extinct!

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