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: John Dean "Jeff" Cooper was a United States Marine, the creator of the "modern technique" of handgun shooting, and an expert on the use and history of small arms.