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seep out and would prevent it from pressing down on the brain and injuring the brain. So for the book, I actually got to try a trepination myself. I used a stone tool for it like you can see here,
it's a piece of flint with some serrations on it. So it was kind of like a sawtooth piece of stone tool. And I tried it out on a deer skull. I essentially cut a triangular hole in the skull
and then levered that bit of skull off. You can see right here, that is the piece of skull from the deer and there's a little bit of skin still adhering to it. And cutting this small piece, it's
Listen to native speakers pronounce “serrations” in real conversational contexts with synchronized timestamps and subtitles.