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The very first fossils of this species -- found by paleoanthropologist Donald Johanson at Hadar in 1973 -- were the parts of a knee joint. Like a human knee, it could "lock," allowing its owner to ...

Learn about our Editorial Policies. Textbooks will tell you that the human body contains 206 bones. But sometimes, there are 208. The fabella, a small bone in a tendon behind the knee, was lost over ...

Cartilage grown from human nose cells has been used to repair serious KNEE injuries. Engineered cartilage from nasal septum ...