Look in the mirror. The face that pins you with its double gaze reveals a chastening secret. You are looking into a predator's eyes. Most predators have eyes set right on the front of their heads, so they can use binocular vision to sight and track their prey.
Bio: Candace Beebe Pert was an American neuroscientist and pharmacologist who discovered the opiate receptor, the cellular binding site for endorphins in the brain.
