Kanzi, a 43-year-old bonobo living at Ape Initiative, who had been anecdotally reported to engage in pretense and could respond to verbal prompts by pointing. Credit: Ape Initiative In a set of playful experiments modeled after children's tea parties, researchers at Johns Hopkins University have shown for the first time that apes can use imagination and take part in pretend play. This ability was long believed to belong only to humans. Across three carefully designed experiments, a single