IN 1902, WILLIAM HORNADAY handed a map to the famous paleontologist Barnum Brown. It was Hornaday’s hand-drawn directions to a remote area of the Montana Badlands, where he believed amazing dinosaur fossils lay buried. Following the map, Brown dug up a jawbone edged with six-inch long teeth, the remains of a monstrous creature no one had ever seen before. But one bone wasn’t enough, and Brown soon found himself in a desperate race to discover the skeleton of the mystery carnivore!

שם הספר
Dinosaur Tracks (Let's-Read-and-Find-Out Science 2)
Apples, Apples
What Lives in a Shell? (Let's-Read-and-Find-Out Science 1)
What's Alive? (Let's-Read-and-Find-Out Science 1)
What Is the World Made Of? All About Solids, Liquids, and Gases (Let's-Read-and-Find-Out Science, Stage 2)