Several rivers across the world have mysteriously vanished underground or flow beneath the surface for miles, puzzling explorers and geologists for centuries. Check out these 7 natural wonders.

On March 14, river defenders gathered for the 28th annual International Day of Action for Rivers. Participants united around ...

Sometimes rivers split into branches in unusual ways, reflecting the complexity of Earth's water system on land and how much we still must learn about it.

Peruvian-Mexican Musuk Nolte won this year’s World Press Photo in the South America stories category for his coverage of the ...

They were put in to keep the river from overflowing its banks, like it did during a historic flood in 2011. Fears of such a ...

Last month it was mealtime on the Lower Columbia. We could hear the excited barking of sea lions across the city of Longview, ...

I thought you were staying on a barge?’ my partner replied when I sent him a picture of the deep copper bath in my ensuite.

Algae with domoic acid is sometimes called red tide, and biologists think runoff from the wildfires and ocean sediment ...

Far-right French politician Marine Le Pen, who was convicted last week of embezzling public funds and banned from running for ...

Rivers join downstream, flow downhill, and eventually meet an ocean or terminal lake: These are fundamental rules of how ...