John Altringham is Professor of Animal Ecology and Conservation at the University of Leeds, UK, where he has been since 1989. He completed his BSc at the University of York, and his PhD at St. Andrews University, where he returned as a research fellow from 1983-1989. During his career he has travelled widely, studying animals as varied as tuna fish and tarantulas before focusing on bat ecology and conservation. He has published over 100 scientific papers, numerous book chapters, and two previous books: Bats: Biology and Behaviour (OUP, 1996), and British Bats (Harper Collins, 2003). He is also a regular advisor and contributor to BBC Natural History Unit productions for TV and radio, and is a member of a number of conservation advisory groups, including the Nature Conservation Panel of the National Trust. John lives on the edge of the Yorkshire Dales with his wife, Kate, and two children, Alex and Anne.