title: Ultradian rhythms in waking behavior of rhesus monkeys.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D005106:Exploratory Behavior / Q000502:physiology; D005247:Feeding Behavior / Q000502:physiology; D006120:Grooming / Q000502:physiology; D008253:Macaca mulatta; D008297:Male; D009043:Motor Activity / Q000502:physiology; D010507:Periodicity