Have you ever wondered why you have goosebumps? Or, unlike many other mammals, you are virtually hairless? Well, the answer might lie somewhere in the timeline of our evolution as a species. According to the theory of evolution, humans have evolved and adapted over millions of years. But don't just take our word for it: you can actually find vestiges of this in and on your own body.
Browse through the following gallery and discover the physical signs of evolution.