MessageToEagle.com - Rivers under the sea can really exist! The ocean has many secrets, and underwater rivers are one them.

Scientists have discovered a massive underwater river flowing along the bottom of the Black Sea. This amazing undersea river is complete with trees and leaves flowing on the sea bed, and even waterfalls!

It is estimated that if on land, the undersea river would be the world's sixth largest in terms of the volume of water flowing through it. It is about 350 times greater than the River Thames and 10 times greater than Europe's biggest river, the Rhine.

This finding can help scientists to shed more light on how life manages to survive in the deep oceans away from the nutrient-rich waters found close to land.