Should primates such as chimpanzees be given rights normally reserved for humans? phil/Flickr, CC BY-NC-SAHercules and Leo don’t know it, but a decision about their future has made history. In granting an order to show cause on whether Hercules and Leo (who just happen to be chimpanzees) are illegally imprisoned, a Supreme Court judge in Manhattan has kept open the possibility that some nonhuman animals will be granted legal rights under common law. The plaintiffs are currently used for biomedical research at New York’s Stony Brook University. What the lawyers running the case hope to show is that Hercules and Leo shouldn’t be treated as if they were just things or property, but should instead be given the status of persons. Showing that any