https://www.youtube.com/watch?v=iv9LHmw7QKk
Bone as leather softening - hide softening tool - used by Neanderthals/modern humans 50,000 years ago - also and still used today!!
They were used in Morocco over 90,000 years ago by modern humans!!
Human DNA was then extracted from the bone jewelry that is 20,000 years old!! The DNA was from inside the object because only temperature increase in water could flush it out. One object linked to one individual's DNA.
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