Darrin Lunde is the author of The Naturalist: Theodore Roosevelt, a Lifetime of Exploration, and the Triumph of American Natural History. He is a Supervisory Museum Specialist in the Division of Mammals at the Smithsonian’s National Museum of Natural History. Previously, he worked at the American Museum of Natural History, and he has led field expeditions throughout the world, collecting specimens in South America, Africa, and Southeast Asia. Lunde has named more than a dozen new species of mammals and shed light on hundreds of others. He lives in Maryland.