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The World's Oldest Arrow Poison Was Discovered In A 7,000-Year-Old Femur Bone
In 1983, archaeologists were excavating a cave in South Africa when they came across a strange-looking femur bone. It dated [ ...
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Structure of the skeletal system
The type of bone determines the amount of movement. Type of bone Example in body Description Long Femur Cylindrical in shape and found in the limbs. Their main function is to act as a lever.