Mark O’Shea is a herpetologist, zoologist, author, and lecturer. He has presented numerous television series focused on snakes for the Discovery Channel, ITV, and the BBC, and ran a variety of herpetological field projects for the Royal Geographical Society, Operation Raleigh, Raleigh Executive, and Discovery Expeditions. His many books include Venomous Snakes of the World and Boas and Pythons of the World (both Princeton).