Prehistoric engravings of giant snakes along South America’s Orinoco river are among the largest examples of rock art we know ...

Compared to many of the world’s river systems, the Orinoco is relatively intact. But this may not last for long as the river and its surrounding areas are threatened by pollution and mining activities ...

Our “What’s a River Worth?” feature splashed into Colombia’s Orinoco River, where a small but diverse team was working together to assess the river basin’s health. They used a river basin “report card ...