"Describes the features of Deinonychus and Styracosaurus, and how they may have battled each other in prehistoric times."--Provided by publisher.

An introduction to the physical characteristics, habits, and natural environment of a variety of dinosaurs.

Describes the features of Triceratops and Stegosaurus, and how they may have battled each other in prehistoric times.

#1 NEW YORK TIMES BESTSELLER • From the author of Timeline, Sphere, and Congo comes the sequel to the smash-hit Jurassic Park, a thriller that’s been millio