If you ever wanted to get the full "how fierce was it?" T. rex experience, you could always start with "SUE," probably the most famous collection of dinosaur bones in the world. She's considered the biggest, most complete T. rex skeleton ever discovered. Found in South Dakota in 1990, she gets her name from her discoverer, paleontologist Sue Hendrickson. She lives in Chicago's Field Museum and measures 42 feet long from snout to tail, standing about 13 feet tall at the hip. FYI, that's not her real skull -- it's a replica. Her real noggin, all 600 pounds of it, is displayed in a different exhibit.
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Photo: Getty Images/Richard T. Nowitz