Mark's childhood growing up in Kenya was similar to that of Gerald Durrell as described in My Family and Other Animals. His parents, Jane Burton and Kim Taylor, were both animal enthusiasts and photographers, which gave him him a good start in the field of nature photography. Mark now concentrates on photographing cute animals, both wild and domestic, often combining different species together, on white backgrounds. His work is frequently used for calendars and greetings cards around the world and often adorns the covers of magazines, including the National Geographic. Mark supplies most of the front cover images for Your Cat and Your Dog magazine.