Gavin was born in Wiltshire, England. From his early childhood he was enthralled with the natural world and would often be found at the bottom of the garden, holding up a snake or some other interesting creature to investigate. Gavin went on to study natural history illustration at university and later entered the world of character design and children’s illustration. He illustrates both fiction and nonfiction books, and also makes prints, paintings, and sculptures of the natural world. He lives in Somerset.