social science

Arts, Culture & Media

Music of the Achuar people

The Achuar live in a piece of the Amazon rainforest in South America. Their ancestral territory straddles two countries we'd like you to name. Reporter Andy Isaacson recently traveled to a remote Achuar village to find out more about their way of life.

Conflict & Justice

Inca capital

For our Geo Quiz we're interested in the Peruvian highlands. The city we'd like you to name is located there. It once served as the capital of the Incan empire. That all changed with the arrival of the Spanish conquistadors.

Science, Tech & Environment

Geo answer

We were looking for a tributary of the Amazon that starts in the Brazilian state of Mato Grosso. The answer is the Xingu River. Researchers working near the source of the river have un-covered traces of ancient settlements -- known as "lost cities" -- buried under a thick layer of jungle. Lisa Mullins speaks with Michael Heckenberger, a professor of Anthropology at the University of Florida who led an expedition to the region.

Arts, Culture & Media

Geo answer

The answer to today's Geo Quiz is Central Asia's Gobi Desert. An archaeological site in that region -- within the Uighur Autonomous Region of China -- is where scientists discovered the world's oldest known marijuana. Anchor Marco Werman gets details from lead scientist, Dr. Ethan Russo whose research is published in the Journal of Experimental Botany.

Conflict & Justice

Inca capital

For our Geo Quiz we're interested in the Peruvian highlands. The city we'd like you to name is located there. It once served as the capital of the Incan empire. That all changed with the arrival of the Spanish conquistadors.

Arts, Culture & Media

Geo answer

Today's answer is the Preseli Hills in West Wales, that archaeologists say are the source of massive stones used to build a recently discovered circle of stones dubbed Blue Stonehenge. Anchor Marco Werman finds out more from Professor Julian Thomas