Learning from Nature

Human Evolution: A Very Short Introduction by Bernard Wood encompasses many topics, but my favorite is about how scientists have viewed how humans fit into the natural world. In Ancient Greece, philosophers like Plato and Aristotle suggested that nature was one system. However, following the collapse of the Roman Empire, the idea that man was one with nature was lost until 16th and 17th centuries. As science developed, researchers began utilizing methods like induction, which began with observations that were tested with experiments, rather than deduction, which began with unproven beliefs, to understand where humans fit. Thus, human origins became something that could be studied through fossils, anatomy, geology, and eventually genetics.

Charles Darwin is arguably one of the most important figures in this shift of thinking. Influenced by other thinkers like Charles Lyell, who wrote about geology and how slow the earth changes, Darwin began to theorize about how minute changes over extended periods of time could also shape living things. Darwin noticed that animals and plants were not exactly alike. Even within the same species, individuals had small differences whether it be their beak was more stout or that they were different colors. These variations mattered because only the most well adapted survived in nature. Food and space were limited, so some had features that helped them live longer and reproduce successfully.

Reading about the development of the idea that humans are part of nature and Darwin’s journey helped me understand that science begins with paying close attention to the world. In classes like AP Biology and AP Chemistry, the importance of not leaving anything unquestioned is stressed. Darwin’s work with observing small details led to his theory of natural selection. By studying animals and the world around him, he helped change how people understood life and humanity’s place in it.