Delena Tull is an environmental science educator and naturalist. A twenty-year resident of central Texas, she holds a Ph.D. in science education from the University of Texas at Austin.
Environmental photojournalist George Oxford Miller is writer, photographer, and third-generation nurseryman. His work has appeared in periodicals such as Living Bird," Texas Parks and Wildlife," and Wildlife Conservation" and in publications of the National Wildlife Federation and the Sierra Club. Miller is author or co-author of several books, including Landscaping with Native Plants of the Southwest," Landscaping with Native Plants of "Texas," A Field Guide to Wildlife of Texas and the Southwest," and The Ozarks: The People, the Mountains, the Magic," He lives in Albuquerque, New Mexico.