Humans are curious creatures. We are motivated to explore and investigate mysterious or unknown objects, but do other great apes share this innate curiosity? Researchers Alejandro Sánchez-Amaro at the Max Planck Institute for Evolutionary Anthropology in Germany and Federico Rossano at the University of California San Diego in the United States set out to investigate and found that children are more curious to explore the unknown than great apes. Yet, after a glimpse of the potential rewards, apes learn to investigate uncertain options.