Some old bones made big headlines this week, as paleoanthropologists reported that they had identified the oldest Homo sapiens fossils yet. Freshly dated to be about 300,000 years old, a collection of fossils and stone artifacts unearthed in Morocco could push the origin of our species back 100,000 years, scientists say in two papers published ... in the journal Nature. Paleoanthropology is kind of like a connect-the-dot puzzle, says Shara Bailey, a coauthor of one of the Nature papers "But you don't have any numbers on it and only a quarter of the dots are there. Will you be able to recreate what that puzzle is? Not necessarily. But as you get more dots and you can put numbers on it, you can get a clearer picture of what that puzzle is actually supposed to be." Each new fossil and date is a boon for scientists, she explains, because it adds another dot and number to that sparse picture. Before this North African site claimed the title of oldest Homo sapiens site, a 195,000-year-old site thousands of miles away in Ethiopia wore that crown. And with other similarly aged Homo sapiens sites nearby, some scientists pointed to East Africa as the birthplace of our species. Now researchers say the Moroccan site, called Jebel Irhoud, adds a new wrinkle. "We're sort of incrementally inching in upon a better description of nature," says Ian Tattersall, a paleoanthropologist. The new fossils could be members of a population of early Homo sapiens relatives that ultimately died out.