Loss of your mother is more than loss of a mother.
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D001831:Body Temperature; D003863:Depression / Q000209:etiology / Q000523:psychology; D005260:Female; D000882:Haplorhini; D006339:Heart Rate; D006801:Humans; D008251:Macaca / Q000502:physiology*; D008426:Maternal Deprivation; D008954:Models, Biological; D012890:Sleep / Q000502:physiology