Digital reconstruction of a crushed skull from an ancient human relative could rewrite the timeline of human evolution, researchers said. A cranium dubbed Yunxian 2 was found in the Yunxian region of China's Hubei province in 1990, alongside another found the previous year, according to a paper published Thursday in Science . The skull had been crushed, but digital reconstruction corrected previous distortions and allowed scientists to gain a better understanding of the early human's physical traits, researchers said. Multiple "Homo" lineages existed during the Middle Pleistocene period, each of which had diverse physical forms, according to the paper. Much of what is known about human evolution and early hominins comes from skulls, but the fossils are often damaged or deformed. That damag

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