Do cockroaches use poop to communicate? Are some parts of the Milky Way more habitable than others? And are street dogs really as altruistic as they seem? 24小时娱乐在线's Online 24小时娱乐在线 Editor David Grimm chats about these stories and more with 24小时娱乐在线's Multimedia Producer Sarah Crespi. Plus, Brenden Lake discusses a new computational model that rivals the human ability to learn new concepts based on just a single example.