Deep in the vast rivers and flooded forests of the Amazon Basin, there lives a fish that appears to be prehistoric in both size and appearance. The arapaima, also called the “pirarucu,” is one of the ...

Deep in the Amazon River lives one of the strangest fish parenting stories in nature. This giant freshwater fish produces a milk-like substance that its babies drink while they grow. The behavior is ...

A mass fish die-off in Brazil’s Amazon River region has killed an estimated 20-30 metric tons of fish and other aquatic animals, following one of the worst droughts in Amazonian history. On the night ...

It’s the longest river in the world, full of unique creatures, weaving and winding 3,700 miles across lush rainforests and ...

The Madeira River is the largest tributary flowing into the Amazon River and is home to many people living on the banks. These residents drink and eat fish from the river, so its water quality ...

In a groundbreaking expedition, researchers from Harvard and Amazonas State University began monitoring water quality and mercury contamination in the Amazon Basin’s largest tributary. The Madeira ...

Rivers are among the most important natural features on Earth. They provide freshwater, support ecosystems, help agriculture, ...

For riverside communities along the Amazon, fish is not a menu choice—it is a lifeline. Millions of people in the Brazilian ...