Systemic change is needed. Researchers issue warning after making alarming discovery deep in Amazon rainforest: 'They need to ...

SAO RAIMUNDO, Brazil - Even in the most biodiverse rainforest of the world, the pirarucu stands out: It can weigh up to 440 pounds, by far the largest of 2,300 known fish species in the Amazon. Not so ...

The construction of the Balbina hydroelectric dam in the Brazilian Amazon led to the loss of seven endemic fish species in the Uatumã River, researchers have found. The hydroelectric dam has ...

A heatwave made lakes in the Amazon hotter than the maximum temperature recommended for hot tubs — a death sentence for endangered dolphins, according to a new study.

The waters of the Xingu River below the Belo Monte hydropower dam, in Brazil's Amazon, used to flood the river's forested ...

A new species of piranha-like fish called pacu was recently found hiding in plain sight among several near-identical species in the Amazon River. Researchers have named it after Sauron from "The Lord ...

Saulo Jennings, a chef from Brazil's Amazon region, is so passionate about the rainforest's flavors -- like the massive ...

The rich organic matter that gives the largest tributary of the Amazon River, the Rio Negro, its characteristic black hue may provide fish with some protection from the negative effects of copper ...