Tiny cut marks on animal bone fossils reveal that human ancestors were in Romania 1.95 million years ago
Looking again through the magnifying lens at the fossil’s surface, one of us, Sabrina Curran[1], took a deep breath. Illuminated by a strong light positioned nearly parallel to the surface of the bone, the V-shaped lines were clearly there on the fossil. There was no mistaking what they meant.
She’d seen them before, on bones that were...