Rice is difficult to grow in the Pacific, so how did it end up in a cave? Archaeologists reveal the hidden history of this ancient and well-travelled grain.

Irreplaceable cave paintings recognized as UNESCO World Heritage have been defaced by modern vandals. This shocking act has destroyed priceless links to our prehistoric past. The damage has ...

RIO DE JANEIRO — Niede Guidon, the Brazilian archaeologist known for discovering hundreds of prehistoric cave paintings in northeastern Brazil and for her research challenging theories of ...

RIO DE JANEIRO (AP) — Niède Guidon, the Brazilian archaeologist known for discovering hundreds of prehistoric cave paintings in northeastern Brazil and for her research challenging theories of ...

Niède Guidon, the Brazilian archaeologist known for discovering hundreds of prehistoric cave paintings in northeastern Brazil and for her research challenging theories of ancient human presence ...

The Brazilian archaeologist who discovered hundreds of prehistoric cave paintings in northeastern Brazil has died.

Guidon first documented the red ocher cave paintings in the semi-arid state of Piaui in the 1970s. These ancient artworks, made with natural pigments such as iron oxides and charcoal, depict deer ...

The age of the cave sediments was constrained via optical dating techniques, which is crucial to help piece together the sequence of climate events leading to a warming planet.

Deep in an underground cave in Guatemala, archaeologists stumbled upon hundreds of fragmented human bones showing signs of injury. The discovery paints a chilling picture: The people here were ...