Return of the Aurochs
Using cave paintings and skeletons, scientists are resurrecting the first recorded animal to have gone extinct.
Inscribed on rocks along the riverbanks in Portugal’s Côa Valley are
figures of wild horses and aurochs — the common ancestor to all domestic
cattle breeds — drawn by Paleolithic hunters tens of thousands of years
ago. Archaeologists scrambled to protect these petroglyphs in the 1990s, as
the Portuguese government planned to flood the valley behind a giant dam.
Within four years, Côa was listed as a United Nations World Heritage Site,
ensuring that this record of p...
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