May 10, 2012 - Tai National Park, Ivory Coast - A young chimp uses a stone to crack open a coula nut. Chimps are not worried about keeping up with the Joneses, according to a new study. Scientists found neighboring chimp communities have different ways of cracking nuts. They observed wild chimps in Africa as they used hammers to crack nuts for the study. Lydia Luncz, of the Max Planck Institute for Evolutionary Anthropology in Germany, said: ”In humans, cultural differences are an essential part of what distinguishes neighboring groups that live in very similar environments. ”For the first time, a very similar situation has been found in wild chimpanzees living in the Tai National Park, Ivory Coast, demonstrating that they share with us the ability for fine-scale cultural differentiation.” She said the chimpanzees under study show preferences for different nut-cracking tools, including stone and wooden hammers of various sizes.The differences are maintained even as individual chimps will sometimes move from one community to the other within a single forest in the Ivory Coast.