The Science of Killer Dinosaurs: The Bloodcurdling Truth About T. Rex and Other Theropods

Discover the world in which extinct predators lived, their physical characteristics, and how they hunted and survived.The theropod group of dinosaurs saw the biggest, fiercest predators that ever walked the Earth - and also some of the smallest, which were nevertheless incredibly deadly for their size. Hundreds of kinds of these killers existed through the Age of Dinosaurs, from about 230 to 66 million years ago.