Grub demonstrates his skills as a percussionist.

How chimps learn about the world around them is also the subject of research with chimps raised in a sanctuary in Florida. These chimpanzees, by contrast with those at the Lincoln Park Zoo, were raised in close contact with humans. We see a nine-year-old male, Grub, very quickly learn from a human demonstrator that he can make a lot of noise with washboards and trowels. And Grub also shines in an experiment to see if he can tell when something very odd is going on — like a blackbird being used as a screwdriver, or a rock treated like a pet.