Dig into dinosaurs! North America, 68,000,000 years ago: a T.rex stalks its prey. England, 200 years ago: Mary Anning unearths a strange fossilized skull. Right now: our ideas about dinosaurs are changing ... fast! This book introduces these ancient beasts in their natural habitats and follows paleontologists through history as they piece together the greatest mystery of all: what happened to the dinosaurs?-- Source other than Library of Congress.