The mysterious disappearance of Greenland’s Norse colonies sometime in the 15th century may have been down to the overexploitation of walrus populations for their tusks, according to a study of medieval artefacts from across Europe.

Church ruins from Norse Greenland’s Eastern Settlement
[Credit: James H. Barrett]Founded by Erik the Red around 985AD after his exile from Iceland (or so the Sagas tell us), Norse communities in Greenland…

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Source: archeo