After graduating from the University of South Florida with a bachelor's degree in zoology, David Perlowin wandered around the country, working in various professions. David moved to Santa Fe, New Mesico in 1982. He finds time to fly-fish, write, and pursue various herpetological breeding projects. A native of central Louisiana, Jerry G. Walls worked as an editor in New Jersey for more than thirty years, authoring more than four hundred publications on natural history subjects, especially reptiles and amphibians. His thirty-eight books (including twenty on herps) range from introductory works on lizards and turtles as pets to massive reviews of seashells, boas and pythons, and poisonous frogs. He also edited Reptile Hobbyist magazine and currently writes a monthly column for Reptiles magazine. He is an active birder, with more than 600 U.

S. species on his life list, and has authored several books and articles on pet and wild birds.