Sue, one of the largest and best-preserved T. rex specimens ever found, is on display in the permanent collection at the Field Museum in Chicago, shown on April 1, 2014.

In How Fast Did T. rex Run?, Hone sets the record straight. Some dinosaurs sported red, white, or iridescent black colors, and showed patterns of colorful patches, spots, or stripes.

In comparison, an adult T-Rex could weigh up to 17,600 pounds and towered 30 feet above the ground. But Nanotyrannus and the T-Rex may not have just differed in size.