Discover the true story of the race between two paleontologists to find the best dinosaur fossils in this fascinating, fast-paced nonfiction picture book. Who will win the Bone Wars? Did you know that many of the dinosaur skeletons you see in museums are rooted in a scientific battle between two paleontologists? O. C. Marsh and Edward Cope met in 1863 and bonded over their shared love of fossils, becoming the best of friends...until...