Peter R. Grant and B. Rosemary Grant are both emeritus professors in the Department of Ecology and Evolutionary Biology at Princeton University. They are the coauthors of How and Why Species Multiply and coeditors of In Search of the Causes of Evolution (both Princeton).

"This book uses hard won data . . . to draw insightful conclusions about the messy, dynamic, and creative processes of evolutionary change and lineage divergence. It would make an excellent . . . textbook for a college-level course in evolution because it has it all: natural selection, sexual selection, heritability, competition, character displacement, speciation, and extinction. . . . This book is a tribute to the authors themselves."---Michael S. Webster, Evolution --- "40 Years of Evolution offers readers numerous opportunities for inspiration at how the study of ecology, evolution, and natural history of finches on a small island reflects the forces at work in the Galapagos and throughout life."---Frederick R. Davis, Quarterly Review of Biology --- "Beauty is in the eyes of the beholder and ‘best' is often a subjective term. In the case of the Grant's work on Galapagos finches, I think it is possible to argue objectively that it really is the best by some measures because of its design, sustained execution, and continual incorporation of new methods and ideas. This book contributes to the status of their research program because it makes this body of work readily accessible to a much larger audience."---David Reznick, Ecology --- "This volume not only provides detailed evidence of the evolution of a specific group of animals, but also offers an overall perspective on how and in what ways bird species have changed in this rather isolated locality." --- "[O]ne of the most intriguing books I have ever read. . . . Read it for yourself. You'll be glad you did!"---Allan Archer, BTO News --- "The study described here is truly exceptional. Peter and Rosemary Grant . . . have devoted their careers to the study of the group of birds known as Darwin's finches on the Galapagos archipelago, one of the most isolated and inhospitable places on Earth. But the payoff is that their research furnishes some of the most compelling evidence for natural selection and the origin of species. . . . The Grants' achievement is monumental."---Tim Birkhead, Times Higher Education --- "For the Grants, evolution isn't a theoretical abstraction. It's gritty and real and immediate and stunningly fast. . . . Most of all, the book is an affirmation of the importance of long-term fieldwork as a way of capturing the true dynamism of evolution."---Joel Achenbach, Princeton Alumni Weekly --- "For the Grants, Daphne Major has been a magic well. With their four decades of work on the island, they've made it a magnificent microcosm, a model of life on Earth."---Jonathan Weiner, New York Times --- "One of Choice's Outstanding Academic Titles for 2014" --- "Honorable Mention for the 2015 PROSE Award in Biological Sciences, Association of American Publishers"