Circannual rhythmicity in a non-hibernating ground squirrel, Citellus leucurus.
D000818:Animals; D001835:Body Weight; D004327:Drinking Behavior; D005260:Female; D008297:Male; D009043:Motor Activity; D010507:Periodicity; D011247:Pregnancy; D012589:Sciuridae / Q000502:physiology*; D012611:Scrotum / Q000502:physiology; D013737:Testis / Q000502:physiology; D013997:Time Factors