Illegal roads have brought deforestation, fire and other environmental damage to the Amazon. Indigenous territory in many areas has blocked them.

A new study using accelerator mass spectrometry (AMS) to date human remains shows Machu Picchu is up to several decades older than previously thought.

Using remnants of fossilized trees, scientists and an artist figured out what the forest looked like long before humans existed.

Deep ocean trenches are home to extraordinary biodiversity waiting to be discovered.

Guano helped humans farm the world's driest desert, new research finds.

Llama toys, therapy lamas, petting zoo llamas: llamas are hot in the US, surpassing unicorns in popularity, but their relationship with South American people stretches over 7,000 years.

Brighter areas, such as agricultural land, aren't hospitable to big-eyed birds, research finds. The study links the size of bird eyes, habitat, and foraging style.

The discovery of a carved stone box suggests that Lake Titicaca was a locus of ritual and ceremonial activity by the Inca, researchers say.

Small-scale gold mining operations in developing countries are major sources of toxic mercury pollution, using techniques that haven't changed much since the California Gold Rush 150 years ago.

Big data could give archaeology a big boost, researchers show with new work on the Inca Empire. But they have some caveats about its power, too.