Had you attended a dinner party fifteen thousand years ago, you might have been served blood in a cup like this - constructed from a human skull.
At 14,700 years old, it is one of the earliest known examples of human skull-cups in the world. Along with other human bones, the macabre cups were discovered by palaeoanthropologists at Gough's Cave in Somerset, UK.
Analysis of marks on the three skull-cups has revealed some of the steps in the manufacture process.
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