What's evolution? Evolution is defined as a change in the inheritable characteristics of biological populations over generations. How does evolution affect humans? Human bodies have changed in the course of evolution and there're some body parts not needed in modern realities. Such parts are called "rudiments". Also, there're some superpowers evolution took from humans. Let's get to know these 16 body functions we lost over time. Learn more about your ad choices. Visit megaphone.fm/adchoices