By Bill Galluccio Photo: Getty Images A 146,000-year-old skull could reshape humanity's family tree. The skull was first discovered by a Chinese worker in 1933, but he hid it in a well because he didn't want Japanese soldiers to take it. The skull remained hidden until 2018 when the worker told his grandchildren about his discovery before he died. They donated the skull to the Geoscience Museum of Hebei GEO University in China, where researchers began to study the fossilized skull. The skull, known as the Harbin cranium, was the subject of three different studies, which examined its unique characteristics. A new study published in the journal