Blacky is one of the most traumatized chimpanzees in the male group. When stress arises in the group, he is still very scared - then he beats himself. When Blacky was one year old, he experienced the worst thing that can happen to a chimpanzee child. The loss of his mother and a murderous attack on his family. Stress, shock, pain. He still hurts today when his thoughts of the past catch up with him. He was kept in an experiment for 11 years without contact with other chimpanzees. He also has great difficulty learning chimpanzee language - all the consequences of years of isolation. In the meantime, we have noticed that he is already appeasing himself by grooming himself. Despite his weaknesses, he is accepted by the others. He is a very warm and loud laugh when playing. He is now the first one at the window to make contact when people come.