title: Behavioural evidence for light intensity discrimination by the fiddler crab, Uca pugilator (brachyura, ocypodidae).
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D003386:Brachyura / Q000502:physiology*; D002940:Circadian Rhythm; D003118:Color Perception / Q000502:physiology; D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D008027:Light; D009949:Orientation; D013045:Species Specificity; D014796:Visual Perception / Q000502:physiology*