Ancient humans living in what is now Ukraine 400,000 years ago may have practised or taught tool-making techniques using mammoth tusks, a softer material than bone
Več na: https://www.newscientist.com/article/2475019-mammoth-tusk-flakes-may-be-the-oldest-ivory-objects-made-by-humans/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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