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 Dragon Eye of the Dragon Eye of the Dragon is a single-player roleplaying gamebook written by Ian Livingstone, illustrated by Martin McKenna and published in 2005 by Wizard Books. It forms part of Steve Jackson and Ian Livingstone's "Fighting Fantasy" series. It is the 21st in the Wizard series. "Eye of the Dragon" was the first new "Fighting Fantasy" gamebook published by Wizard, although the book is an extended version of the adventure from Ian Livingstone's earlier book "Dicing with Dragons" rather than a completely original adventure. The book is made up of 407 references rather than the usual 400. This