Fresh look at mysterious Nasca lines in Peru

A scientific approach has re-identified huge birds etched into the desert plains of southern Peru around 2,000 years ago. The birds appear to be exotic to the region, and further studies could help explain their significance. ...

Evolution: South Africa's hominin record is a fair-weather friend

New research from an international team of scientists led by University of Cape Town isotope geochemist Dr. Robyn Pickering is the first to provide a timeline for fossils from the caves within the Cradle of Humankind. It ...

World Heritage sites threatened by sea level rise

From Venice and the tower of Pisa to the medieval city of Rhodes, dozens of UNESCO World Heritage sites in the Mediterranean basin are deeply threatened by rising sea levels, researchers warned Tuesday.

Chemical cocktail found in Barrier Reef turtles

Human medicines and household substances have been discovered in the blood of green turtles in Australia's Great Barrier Reef, researchers said Friday, highlighting the impact of man-made matter on marine life.

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