From his stunning discovery of Tyrannosaurus rex one hundred years ago to the dozens of other important new dinosaur species he found, Barnum Brown led a remarkable life (1873–1963), spending most of it searching for fossils—and sometimes oil—in every corner of the globe. One of the most famous scientists in the world during the middle of the twentieth century, Brown—who lived fast, dressed to the nines, gambled, drank, smoked, and was known as a ladies’ man—became as legendary as...