A Superb Examination into the Origins of Darwinian Thought
Rebecca Stott’s “Darwin’s Ghosts: The Secret History of Evolution” is a masterful overview of the history of science leading up to Darwin’s discovery of Natural Selection as a primary mechanism for biological evolution. Hers is an especially important account, since she places the work of Darwin and his intellectual forebears within the context of the societies and cultures they inhabited, stretching across a vast gulf of time that begins with the ancient Classical Greeks. It is also an extremely lucid account replete with Stott’s vivid, quite descriptive, prose; an account that should captivate and intrigue readers, including those who are unfamiliar with Darwin’s life and work or that others, most notably, Lamarck, had proposed evolutionary theories decades before Darwin and Wallace had stumbled upon Natural Selection independently of each other.
Stott begins in earnest describing how Aristotle became an extraordinary field naturalist on the Aegean island of Lesbos, carefully studying the behavior of fishes and marine invertebrates, devoting two years toward trying to understand reproductive behavior of the marine animals he observed, using the insights he gleaned for the rest of his life in shaping his philosophy, while also working on three books, “Parts of Animals”, “The History of Animals” and “On the Generation of Animals”; the very first works in zoology and biology ever written. Over a thousand years later, Jahiz, one of the most prolific and versatile writers of the Sunni Islamic Abbasid Empire, would stumble upon an understanding of life on Earth unequalled by anyone until Darwin and Wallace’s scientific careers flourished, recognizing that all life was interdependent with other living things, gaining an early understanding of predation and of ecological communities, without conceiving of a suitable mechanism for “descent with modification” – as Darwin described evolution – like Natural Selection. During the Italian Renaissance, Leonardo Da Vinci would recognize the great antiquity of the Earth, understanding that mountains containing the fossils of seashells were once underwater eons ago. Nearly the entire latter half of Stott’s impressive tome is devoted to French Enlightenment scientists like Buffon and Cuvier, who were among those pioneering the systematic study of all life on Planet Earth, while remaining dismissive of “transformist” ideas like Lamarck’s theory of evolution and in-depth discussions of Scottish zoologist Robert Grant – who would teach a young Charles Darwin how to collect and to preserve marine biological specimens and thus have a lasting impact on Darwin’s subsequent field and experimental research in biology and geology – and of the young Alfred Russel Wallace, a dedicated, largely self-taught animal collector, who would begin making important insights into the biogeography of the East Indies, and then, while stricken with an acute case of malaria, would recall his reading and understanding of Thomas Malthus’ “Essay on Population”, and then stumble, independently of Darwin, on the mechanism of biological evolution which would become known as Natural Selection.