Cooperative eye hypothesis Cooperative eye hypothesis The cooperative eye hypothesis is a proposed explanation for the appearance of the human eye. It suggests that the eye's distinctive visible characteristics evolved to make it easier for humans to follow another's gaze while communicating or while working together on tasks. Unlike other primates, human beings have eyes with a distinct colour contrast between the white sclera, the coloured iris, and the black pupil. This is due to a lack of pigment in the sclera. Other primates have pigmented sclerae that are brown or dark in colour. There is also a higher contrast between human skin,
The Eye of the World their hands, and is sentenced to death. Moiraine, Lan, and Nynaeve rescue Egwene and Perrin, and all are reunited with Rand and Mat. Thereafter Moiraine determines that Mat must travel to Tar Valon, the Aes Sedai's center of power, to overcome the influence of Shadar Logoth. Loial warns Moiraine of a threat to the Eye of the World, a pool of Saidin untouched by the Dark One's influence, which is confirmed by vivid and disturbing dreams Mat, Rand, and Perrin have had. The Eye of the World is protected by Someshta (the Green Man) and contains one of the seven