| 1 | The disease causes patches of pigmentation on the face. | |
| 2 | This is because nature is unable to produce blue pigments. | |
| 3 | Jackson said he suffered from vitiligo, a condition that causes the skin to lose its pigment. | |
| 4 | Grey/white hair is what hair looks like when there is no pigment. | |
| 5 | In one type of squirrel monkey, the males lack a visual pigment called L-opsin. |