“If you happen to be one of the people who has a split zygomaticus major muscle, where the lower part of it is tethered to the overlying skin, this will create a dimple in your cheek when you smile.”
Alice Roberts“If you happen to be one of the people who has a split zygomaticus major muscle, where the lower part of it is tethered to the overlying skin, this will create a dimple in your cheek when you smile.”
Alice Roberts, The Incredible Unlikeliness of Being: Evolution and the Making of Us