Dino autopsy: Leading paleontologists unlock the mysteries behind one of the most complete dinosaur mummies ever discovered. This rare specimen with its fossilized skin and tissue intact, is bringing us closer than ever to understanding how dinosaurs lived, looked, and moved. Dino death trap: The fossilized remains of Tyrannosaurus rex's great-grandfather are unearthed in China's Gobi desert, revealing what the T-rex looked like before they grew so gigantic. State-of-the-art research techniques and amazing new footage of dinosaur mummies reveal fascinating new clues about the lives of the prehistoric giants who once ruled the Earth.