The past, present and future of extinction from a world-leading naturalist. After They're Gone by Peter Marren is out now! Wise, challenging and offering some unexpected laughter in the dark . . . Peter Marren is a brilliant writer and a national treasure’ Patrick Barkham 'Thoughtful, fascinating and very timely' Stephen Moss 'Essential reading. Marren makes a page-turner out of Armageddon' Simon Barnes