Intellectual performance of differentially reared chimpanzees: I. Delayed response.
D000818:Animals; D001076:Aptitude; D002668:Child Rearing; D003423:Critical Period, Psychological; D004777:Environment; D015186:Hominidae; D006801:Humans; D007360:Intelligence; D008426:Maternal Deprivation; D008722:Methods; D013037:Spatial Behavior; D013997:Time Factors