Cultural behavior must involve the use of artifacts. The most famous example in the animal world is the termite stick. Some chimpanzees in Tanzania have learned to fish termites out of their nests using sticks. They select a stick and modify it to fit down an opening in a termite nest, insert it, wiggle it around and withdraw it, eating the termites that have attacked the stick and stuck to it. This fits our criteria for cultural behavior. It is not genetically programmed. Not all chimps do it, as would happen if it were built into the chimps' genes. It involves several complex generalisations and ideas, involving understanding the termites' behavior and how to exploit it, and conceiving of a tool with which to do so. It is taught by mother chimps to their offspring. And it involves the use of an artifact: the stick itself.