Do we underestimate chimpanzees or do we overestimate ourselves? One thing is for sure is that these chimpanzees are better than us at memory games. One can argue if they are even smarter than us at certain intellectual tests. Seeing this primate solve these puzzles at such an amazing speed made me feel very unevolved. Check out also “chimp empathy and morality” as well as “chimpanzee vs human child“.