A classic of adventure travel, this landmark of natural history is also a cornerstone in the development of evolutionary theory. The Beagle departed from England in 1831 on a voyage to map the coast of South America. Its two-year itinerary stretched into five years, and the ship's naturalist, young Charles Darwin, made the observations that led to his concept of natural selection. Darwin based many of his conclusions upon his study of the unique creatures of the Galápagos: marine and land iguanas, giant tortoises with a variety of shells, and more than 20 species of finches, each with a distinctive beak. Upon his return home in 1836, Darwin published a series of books based on the noteBooks and diaries from his voyage, including this historic work--essential reading for scientists, historians, and anyone with an interest in the natural world.