Find out how organisms change to meet the challenges of their environments. This book explores the evolution of different plant and animal species, from changes in physical appearance to adaptation in behaviour, and explains how these organisms have adapted to thrive in an ever-changing world. Includes experiments that demonstrate how animals have adapted to their surroundings and fascinating fact boxes that offer in-depth information on topics such as evolution. An activity project shows students at Key Stage 3 how to investigate what lichens can tell you about the level of air pollution. The six books in the Living Processes series look at the processes all living organisms must carry out in order to stay alive. From feeding and drinking through to breathing and reproducing, it explores the differing ways in which organisms carry them out.