Answer:
were able to develop a sense of self-recognition comparable to two or three-year-old humans
Step-by-step explanation:
The intelligence of chimpanzees is well known. They can learn sign language with acceptable vocabulary, have symbolic ability, use tools and have even proven themselves superior to us in some mathematical memory skills. Primatologists say that his mental capacity is similar to that of a three-year-old boy. In a famous experiment called the "floating peanut", carried out by scientists from the Max Plank Institute in Germany, children of that age and monkeys could get a prize if they were able to rescue a nut put in a test tube, for which they were He handed a glass of water. Animals and young reached similar successes, but the former were dedicated to improvise, while the little ones were able to imitate those who were most successful.