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: Daniel Craig McCallum was a Scottish-born American railroad engineer, general manager of the New York and Erie Railroad and Union Major General during the American Civil War, known as one of the early pioneers of management.