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,
Eye of the Wyvern aspirations; the adventure is simple and the ultimate in linear-ness. But designing a get-started-quick, anybody-can-play roleplaying module is a very high aspiration for the future of this hobby, and in that this book gets high marks." Eye of the Wyvern Eye of the Wyvern is an adventure module for the "Dungeons & Dragons" fantasy role-playing game. "Eye of the Wyvern" is a wilderness adventure, and part of TSR's Fast-Play Game adventure series. The Fast-Play products, which began with the introductory adventure "The Ruined Tower" and continued with "Wrath of the Minotaur" and "Eye of the Wyvern", are intended to be