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Tyrannosaurus Rex, Red bargain excellent resonant soundThe thirteen metre long Tyrannosaurus Rex was a two legged predatory dinosaur. With its powerful head and nearly 20 centimeter long teeth, this dinosaur was an extremely impressive contemporary. Although the Tyrannosaurus Rex looked quite threatening, it could hardly use its front legs armed with just two claws since they did not even reach his mouth. Nearly seven metres tall and thirteen metres long, the Tyrannosaurus Rex was probably not a very