This compelling book reads like a good novel but, at the same time, opens a window on the process of evolution. It is the story of two dedicated scientists who have been studying a population of Darwin's own famous finches, in the Galapagos Islands, since 1970. They are able to recognize every one of the birds by sight and know all about their family trees, their breeding habits and almost every other aspect of their daily lives. But most exciting of all, they are observing evolution in progress, in exactly the way that Darwin surmised. The book describes their field work, living conditions and some of their perilous adventures; explains how they have managed to record the activities of some 20,000 finches over a period of 20 years; discusses Darwin, his theory of evolution and the continuing resistance to his ideas; and helps to explain in a delightful, roundabout way how evolution really works. If you only read one book on the subject, this should be it. (Kirkus UK)