The ancient shark tooth blades were most likely used in warfare, or for ritual purposes, according to the researchers.
Archaeologists have discovered two knives that were fashioned from shark teeth about 7,000 years ago.An international team of researchers uncovered the unique artifacts during excavations on the Indonesian island of Sulawesi. The island—the 11th-largest in the world—has a rich archaeological record dating back to prehistoric times, and it's home to some of the oldest known cave art in the world.
Close examination of the ancient tiger shark tooth blades revealed that they had once been tightly fixed to a handle using plant-based threads and a glue-like substance. This adhesive was made from a combination of mineral, plant and animal materials.The same method of attachment is seen in modern shark-tooth blades used by various cultures today throughout the Pacific region.The ancient shark tooth blades were most likely used in warfare, or for ritual purposes, according to the study.
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