Roger L. Hammer is a professional naturalist, botanist, and survivalist instructor for the reality TV show, Naked and Afraid. He received the first Marjory Stoneman Douglas Award from the Florida Native Plant Society and an honorary Doctor of Science degree from Florida International University. He is also the author of Everglades Wildflowers, Central Florida Wildflowers, Wildflowers of the Florida Keys, Complete Guide to Florida Wildflowers, Exploring Everglades National Park and The Surrounding Area, and Paddling Everglades and Biscayne National Parks. He lives in Homestead, Florida with his wife, Michelle.