Anorexia, food deprivation and hibernation.
D000818:Animals; D001143:Arousal; D001835:Body Weight; D002940:Circadian Rhythm; D004435:Eating; D005508:Food Deprivation; D006605:Hibernation; D007031:Hypothalamus / Q000502:physiology; D012589:Sciuridae / Q000502:physiology; D012621:Seasons; D013696:Temperature