| | Trent Consultants News Children as young as 5 months old are able to tell the difference between human speech and monkey calls, a new study has found. Trent Consultants News Researchers showed 5-month-old infants from English- and French-speaking homes pictures of human faces and rhesus monkey faces paired with either human speech or monkey calls. The infants looked longer at pictures of human faces when human speech was presented and longer at monkey faces when monkey calls were played |