David Hosking is a wildlife photographer who, with his wife Jean, runs the Frank Lane Picture Agency, one of Britain's oldest natural history photo libraries. A coauthor of "Wildlife of the Galapagos", his work has appeared in numerous publications. He also runs Hosking Tours, a company specializing in nature photography holidays. Martin B. Withers is one of Britain's finest nature photographers. He has traveled extensively throughout the world in pursuit of natural subjects for his photography and as a tour leader with Hosking Tours.