Sclera other species share, but also to the fact that the human iris is relatively small and comprises a significantly smaller portion of the exposed eye surface compared to other animals. It is theorized that this adaptation evolved because of our social nature as the eye became a useful communication tool in addition to a sensory organ. It is believed that the conspicuous sclera of the human eye makes it easier for one individual to infer where another individual is looking, increasing the efficacy of this particular form of nonverbal communication. Animal researchers have also found that, in the course of
Heart's Desire (The Outer Limits) Heart's Desire (The Outer Limits) "Heart's Desire" is an episode of "The Outer Limits" television show (new series). It was first aired on 28 February 1997, during the third season. It is set in the town of Heart's Desire in the Oregon Territory in 1872. In the episode, a visitor from another world takes over the body of a human preacher. He gives four outlaws a special energy power, which they can use to destroy anything they wish as long as they "want it more than anything else". The first outlaws to be given these powers are two friends, Frank