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
The Human Factor (1963 The Outer Limits) mind probe machine - with help from Ingrid - to himself and to Brothers. At the final moment of the process, just before Brothers dies, Hamilton's mind is successfully returned to his body. Afterwards, both Hamilton and Ingrid try to make sense of the ordeal, while wondering how to explain the unbelievable circumstances surrounding Brothers' death, with Hamilton suggesting that they simply tell the truth - Maj. Brothers shot himself. The Human Factor (1963 The Outer Limits) "The Human Factor" is an episode of the original "The Outer Limits" television show. It first aired on 11 November 1963, during the