During an outing in the woods, Kanzi the bonobo, who was being studied by the Ape Cognition and Conservation Initiative collected wood, broke it up, and placed it neatly in a pile before striking a match to light a fire.
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If that wasn’t impressive enough, he then signalled for marshmallows from his keeper and toasted them on a stick. Kanzi not only learnt to communicate but built tools by himself.