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"Until 1963, when Jane Goodall published her work on wild chimpanzees using tools, most scientists believed that tool use was a uniquely human trait. Now half a"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/photos/15-remarkable-animals-that-use-tools/woodpecker-finch>