In a river of northern Bolivia, a silvery predator with "sharp" teeth swam through the murky waters. Its white eyes scanned ...

MANAUS, Brazil - The river port in the Amazon rainforest's largest city of ... the worst wildfires in more than a decade in Brazil and Bolivia. Researchers say climate change is the main culprit.

The Madeira River, a major tributary of the Amazon River that stretches for 3,300 kilometres (2,050 miles) over Brazil and Bolivia, reached its lowest level since monitoring began in 1967 this ...

Photo from Getty / iStockphoto In a river of northern Bolivia, a silvery predator with ... a large tributary of the Amazon River, between 2001 and 2012 to survey aquatic ecosystems, according ...