RIO DE JANEIRO — Guinness World Records, Britannica and the U.S. government agree: The longest river in the world is the mighty Nile — the “father of African rivers,” Britannica says.

The big news this spring is AmaWaterways' first cruises in Colombia. But it is not the only line with South America on its ...

Nile or Amazon? It’s not as straightforward as you think. Let’s untangle the science, measurements, and muddy sources behind ...

The Nile in Africa is officially recognized as the world’s longest river, but now a new expedition is heading to South America with the aim of exploring a tributary of the Amazon which may lead ...

Parts of the world’s largest rainforest is suffering its worst drought. Amazon rivers in Brazil, including the Negro River and Madeira River, have fallen to record low water levels.

The world's longest river is at its lowest levels after a long drought. That's left the Amazon Rainforest, the vital waterway and tributaries parched, stranding communities and affecting livelihoods.

While the Amazon River is infamous for its dangerous creatures like piranhas, anacondas, and caymans, there are rivers around the world that are even more treacherous. In today’s video, we’ll dive ...

In Colombia, the river's fall has isolated some rural Indigenous communities, prompting nonprofits and the government to deliver water and food to places that depend on rain and river water to survive ...

Ash Dykes, a UK explorer, has discovered the source of an uncharted Amazon river and two waterfalls, accomplishing this feat all while being stalked by jaguars and ravaged by insects, according to ...

Last year's record drought in the Amazon and less than usual rainfall since caused river water levels to drop rapidly, hindering navigation by barges carrying grains for export and cutting off ...