Anatomical clues to human evolution from fish

It may seem strange that humans have evolved from fish, but the evidence can be found not just in fossils but also within our own bodies.

Your face is your most expressive feature; it tells the world what you are feeling, who you are and where you come from. Although no two faces are exactly the same, they share a number of common characteristics; a couple of eyes, a nose, a mouth and a philtrum.

The philtrum is the groove on your top lip that lies just beneath your nose. You see it every day in the mirror so you probably never think about it

It has no obvious function. Instead it is an accident of our origins, a clue to our fishy past and how our faces first formed.  link