There are about 165 major river basins on Earth, each helping to support life. The Nile is the longest river at 6,650 km, while the Amazon is the largest and widest, carrying 20% of the world's ...
Caño Cristales in Colombia, known as the River of Five Colours, transforms between July and November into a vivid natural spectacle. Its striking reds come from the aquatic plant Macarenia clavigera, ...