Underground rivers, like Amazon's twin and Europe's streams, captivate scientists with their mysterious paths.

The new Paddington in Peru film features the Peruvian bear returning to his homeland to look for his aunt in the Amazon rainforest via river boat. Want to follow Paddington and explore Peru too?

While the Amazon River is longer and bigger ... In the last two years, more than 50 tons of cocaine that traveled this route through South America were seized from the European ports of Antwerp ...

T he Amazon river is the largest drainage system in the world in terms of water volume and its drainage basin. The 6,400 kilometer (4,000 mile) river flows from the Andes Mountains of Peru ...