MURCIA, SPAIN—Science News
reports that paleontologist Michael Walker of the University of Murcia
and his colleagues have found evidence for the earliest controlled use
of small fires in Europe at Cueva Negra del Estrecho del Río Quípar. The
cave, located in southeastern Spain, has yielded more than 165 stones
and stone artifacts and 2,300 heated or charred animal-bone fragments.
Microscopic and chemical analysis of these objects indicates that they
were heated to between 750 and 1,000 degrees Fahrenheit, temperatures
consistent with having been burned in fire. Walker thinks the fires were
started by human ancestors some 800,000 years ago, based upon the
identification of a reversal in the Earth’s magnetic field some 780,000
years ago in sediments above the burned artifacts. Fossils of extinct
animals have also been found with the stone tools. Some scientists
question the early date and think the tools are at most 600,000 years
old. That would still make the fires the earliest known in Europe.
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