Driven by demand from Asian consumers, rising prices, and made possible by new technologies -- gold mining is threatening some of the most diverse tropical forests in South America.
Venezuela now has its first meat-loving dinosaur, a scrappy carnivore known as Thief of Tachira.
Is there anything left to discover? Have the most important temples, tombs, pyramids, cities, and civilizations been found?
Dust from the Sahara blows minerals from fish fossils across the Atlantic and helps plants grow in the Amazon rainforest.
Mind-altering substances were all the rage 1,500 years ago, at least among certain elite members of a South American society.
A sandstorm exposes undiscovered geoglyphs near the mysterious Nazca rock lines.
Venezuela's first-known dinosaur provides some of the earliest evidence that at least some dinosaurs lived in herds.
A mysterious mummy that sat in a German collection for over a century was once an Incan woman who was murdered with blunt-force trauma to the head, possibly in a ritual sacrifice, new research suggests.
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