Here’s what you’ll learn when you read this story:Many known hominin fossils defy species classification, with the most famous example being the ever-enigmatic Denisovans. This potential breakthrough occurred when the researchers were devising a new organizational system for fossils and discovered similarities among certain cranial and dental fossils—all with distinct differences from other hominin species. Now, anthropologists from the Chinese Academy of Sciences and the University of Hawai’i are illustrating a previously unknown—or, rather, uncategorized—chapter of that story with the introduction of a new human species, H. juluensis. Although this is a convincing argument that these particular specimens belong to a previously unknown human species, more research will be needed before anthropologists bust out the “Welcome to the Family” banners. But because these fossils still defy species classification, it’s likely only a matter of time before the hominin tribe increases by one (or more).