Once the reluctant revolutionary, Charles Darwin, published his scientific discoveries in his book, The Origin of Species, it changed forever and for centuries shaped the world in which we live. One of Darwin's theories, supported by a large amount of evidence, which he published in this book, was that humans, along with all other living species, are subject to evolution and change over time. This theory would later give rise to an entirely new field, evolutionary psychology. Today, evolutionary psychology is an emerging and still growing field. Darwin's evolutionary theory provided the framework for developing a new perspective, and therefore a new field, in psychology. By applying Darwin's approach and theories to psychology, we have created a new way of looking at the evolution of humanity and human behavior. Evolutionary psychology is the study of human psychological adaptations to physical or social changes in the environment. Research in this field focuses on changes in the structure of the brain, differences in behavior between people and their cognitive mechanisms. Scientists and psychologists built on Darwin's ideas and came together to work together in the early 1950s to begin research on the evolution of humans. Their work brought a new perspective to the study of growth or change in humanity. The Evolutionary Psychology Center focuses on questions such as: How does a trait develop and evolve in an individual, are all traits subject to change, or are there some immutable human traits? By asking these types of questions, evolutionary psychologists, thanks to Darwin, can understand whether a certain trait is shaped by natural selection and how a trait can contribute to a being's survival. In other words, the world has gained a new perspective... middle of paper... Although one hundred and fifty-five years have passed since the publication of Charles Darwin's book, On the Origin of Species, its influence is still felt today. Although the focus of his book was on what evolutionary biology would become, perhaps consciously, he indirectly influenced and created many other fields, including evolutionary psychology. Although Darwin could not have imagined the impact his work would have on psychology, he wrote in The Origin of Species: “In the distant future I see fields open for more important research. Psychology will be based on a new foundation, that of the necessary acquisition of all mental power and capacity by gradation." In a sense, Darwin was aware that his theory would not only change science, but would also influence other fields such as psychology. After all, Darwin found a new way of looking at life.