Introduction to bone and horn tools: Because animal bones, horns, teeth, shells, etc. are hard and easy to preserve, primitive ancestors often made various production tools from leftover animal remains. Many bone tools have been unearthed at the Banpo site, including bone knives, bone awls, bone harpoons, bone fishhooks, etc., as well as pyramids made of animal horns and clam knives made of clam shells.
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