Humans and monkeys take note. We might no longer be special when it comes to "true" handedness. Once thought to be a peculiar trait found only in primates, researchers who painstakingly followed kangaroos in the wild and discovered, to their surprise, that they, too, prefer to use a certain hand. Their left hand, to be precise. This discovery, which, of course, still has to be independently confirmed, could open the doors to closer scrutiny of the brains of these marsupials, who are known to bring down drones when annoyed.