Monkey see, monkey do in Brazil

Evidence of monkeys using stones as tools has long been noted in Africa and Asia, but scientists for the first time discovered capuchin monkeys in Brazil using stone tools to open cashews. Archaeological evidence suggests the monkeys have known how to do this for 700 years.

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Scientists unearthed a trove of 700-year-old stone tools — used by monkeys

By Darryl Fears

The Washington Post

July 11, 2016