Monkeys Break Rocks, Show Humans Aren't So Special

It's said that an infinite number of monkeys sitting at an infinite number of typewriters would eventually produce the works of Shakespeare. New research finds that a noninfinite number of monkeys holding a noninfinite number of rocks might at least produce something like stone tools. Capuchin monkeys banging rocks against one another can accidentally make stones once thought to bear the telltale marks of a toolmaking human ancestor, researchers reported today (Oct. 19) in the journal Nature.