NOVA covers exciting and controversial research with chimpanzees who have been trained to express themselves with human symbols. Are they speaking their minds? Or are they just aping their trainers?
सदस्यों द्वारा अपने विचार साझा करने के बाद समीक्षाएँ यहाँ दिखाई देंगी।
अभी कोई संगीत नहीं
साउंडट्रैक जोड़ेंविज्ञापन
