Chimpanzees, More Rational Then Humans

Are chimps more rational then humans? In some cases maybe — I think it shows how the human instinct for “fairness” (apparently not a chimp trait) affects our decision making. The article below describes the experiment of chimp rationality.

We usually accept without argument the notion that man is at the top of the animal hierarchy. After all, only mammals have a neocortex – the most recently evolved part of the brain and the center of higher mental functions – and ours is the most advanced variation, so it makes sense that we’d be at a higher stage of development.

But is this true? Does the neocortex always make us more rational than other animals?

Most of the time, the answer is yes. For instance, it’s thanks to our neocortex that we are able to plan for the future, something that animals have a hard time doing. (They are even worse at saving than we are!)

Still, this isn’t always the case, as the following chimpanzee experiment suggests. In “Chimpanzees are rational maximizers in an ultimatum game,” researchers Keith Jensen, Josep Call, and Michael Tomasello looked into how chimps fare at one of the classic tests of human rationality, the ultimatum game.

In the human version of this game, a “proposer” is handed some money, say $10, and must suggest a division of the sum for himself and another participant. This other person, the “responder,” can then either accept or reject the offer. If he chooses to accept the division, both participants receive their share; if he opts to reject it, neither gets compensated.............

Source and Finale