A scaled ratio of body weight to brain weight of a comparative index for relative importance of brain size in mammals of widely varying body mass.
D000818:Animals; D000885:Anthropology, Physical; D001835:Body Weight; D001921:Brain / Q000033:anatomy & histology*; D005010:Ethology; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D008322:Mammals / Q000502:physiology; D008433:Mathematics; D009929:Organ Size