Society, Politics & Law
Psychological research, obedience and ethics
...techniques, values, to the next generation. So here is a chimpanzee, three and a half years old. Not yet acquired the skill. Then the girl went to an adult chimpanzee who is cracking open nuts and carefully watching the skill in this close distance. This is their way of observation. Now the girl went back to her original place to try to crack open nuts. Still very...