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A Grazing Bison, Delicately and Carefully Drawn, Engraved on a Wall of the Altamira Cave, Northern Spain

A Grazing Bison, Delicately and Carefully Drawn, Engraved on a Wall of the Altamira Cave, Northern Spain.jpg ThumbnailsA Menhir of the Neolithic PeriodThumbnailsA Menhir of the Neolithic PeriodThumbnailsA Menhir of the Neolithic PeriodThumbnailsA Menhir of the Neolithic PeriodThumbnailsA Menhir of the Neolithic Period

This was the work of a Reindeer Man or Cromagnard, in the Upper or Post-Glacial Pleistocene, perhaps 25,000 years ago. Firelight must have been used in making these cave drawings and engravings.