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 Silence The Eye of Silence The Eye of Silence (), 1943–44, is a painting by German dadaist and surrealist Max Ernst. For "The Eye of Silence" Ernst employed a technique called decalcomania to create arbitrary textures on the canvas, which he then reworked to resemble rock formations and forms of animals, plants, and architecture. The imagery on the surrealist canvas has been described as a primordial-like landscape, "in which rock-hard and gelatinous formations coexist under a forbidding sky." "The Eye of Silence" has also been described as, "part vegetation, part rock and part bejewelled baroque palace. A fusion of animal, mineral