Kirk, E Christopher Effects of activity pattern on eye size and orbital aperture size in primates. [electronic resource] - Journal of human evolution Aug 2006 - 159-70 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0047-2484 Standard No.: 10.1016/j.jhevol.2006.02.004 doi Subjects--Topical Terms: AnimalsCircadian Rhythm--physiologyEye--anatomy & histologyFeeding Behavior--physiologyOrbit--anatomy & histologyPrimates--anatomy & histology