Circadian activity of the red squirrel, Tamiasciurus hudsonicus, in continuous darkness and continuous illumination.
D000204:Activity Cycles; D000818:Animals; D001522:Behavior, Animal; D002940:Circadian Rhythm; D003624:Darkness; D008027:Light; D008954:Models, Biological; D012589:Sciuridae / Q000502:physiology*