There are 32 pages in this book. This book was published 2011 by Nosy Crow Ltd .

Catherine Barr specializes in clear explanations of `big issues for small people'. She has worked with Greenpeace and London's Natural History Museum before becoming a full-time researcher-writer. She describes herself as "interested in writing non-fiction stories that spark questions and conversation". Her bestselling book, The Story of Life , explaining the principle of evolution, was shortlisted for the English Association Picture Book Award in 2016. Catherine Barr lives near Hay-on-Wye. STEVE WILLIAMS is a biologist with a degree in Marine Biology and Applied Zoology from the University of Wales. His lifelong love of wildlife was further inspired by eight years at sea, after which he trained as a teacher, and now teaches science in a rural comprehensive school in Wales. He is a beekeeper and lives near Hay-on-Wye with his wife and two daughters.