By A Mystery Man Writer
The ancient shark tooth blades were most likely used in warfare, or for ritual purposes, according to the researchers.
Archaeologists Discover 7000-Year-Old Shark Tooth Knives In Indonesia
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Archaeologists discover 7,000-year-old tiger shark-tooth knives in Indonesia - Arkeonews
Seven-Foot Sword Unearthed From 1,600-Year-Old Burial Mound in Japan, Smart News
The Conversation
Prehistoric Swiss Army knife indicates early humans communicated - The University of Sydney
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Bringing a shark to a knife fight: 7,000-year-old shark-tooth knives discovered in Indonesia
Blade Fish 7000 - その他
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