Archaeologists working in Spain have discovered several new cave etchings dating back 14,000 years to the Middle Magdalenian period. Using innovative methods of photography, photogrametry, and 3D laser scanning, the researchers were able to identify faint etchings of a bison, horse, and a possible doe and wolf.

Image: Tracing of a bison (Garate and Rivero, 2015)

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