article_snippet: Chimpanzees have special 'words' that Chimpanzees use for different types of food and can even learn the calls used by strangers from foreign groups.
article_snippet: a group of adult chimpanzees from a safari park in Holland findings are the first evidence that chimpanzees can learn calls referring to specific foods or objects.
article_snippet: Many scientists have assumed that one of the defining features of human language is that objects and events can be named with different words or symbols depending on the culture.
article_snippet: By analysing the acoustic structures of the calls a group of adult chimpanzees from Beekse Bergen Safari Park in the Netherlands produced for apples, a group of adult chimpanzees from Beekse Bergen Safari Park in the Netherlands found that the two groups of animals had different calls for the fruit before a group of adult chimpanzees from Beekse Bergen Safari Park in the Netherlands were put together in 2010.
article_snippet: While the Dutch chimps used high pitched grunts the Edinburgh chimps used far lower and softer sounds.
article_snippet: After a year of integration, the grunt calls for apple were still different, but after three years the calls produced by the Dutch chimpanzees had changed to match those produced by those from Edinburgh.
article_snippet: can help to shed light on our evolutionary past, such as how the human diet has changed over time .