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 ...

The Amazon river dolphin, or boto, is an integral feature of the rainforest’s biodiversity and culture, and is central to several Indigenous tales. Even though the dolphin isn’t fished for human ...

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 ...

When people talk about “the Amazon,” they generally mean the vast Amazon rainforest, not the river that gave the forest its name. (To test this, Google “the Amazon.” When I did that, the list of top ...

An Amazonian lake reached 106°F recently, and that heat killed hundreds of river dolphins - an alarming sign of climate ...

PUERTO NARINO, Colombia — A flash of pink breaks the muddy surface of the Amazon River as scientists and veterinarians, waist-deep in the warm current, patiently work a mesh net around a pod of river ...

MAMIRAUÁ RESERVE, Brazil — On this stretch of the Amazon River, you don't need a fish finder to locate the pirarucu, one of the world's largest freshwater fish. The splashing gives them away. Like the ...

The launch of the Tropical Forests Forever Facility (TFFF) at the COP30 climate summit in Belém, Brazil underscores how the Amazon Forest can be part of the climate solution. There’s another Amazon, ...

Legend has it that the Santiago river used to swallow the canoe of anyone trying to explore it. Now an indigenous community is discovering surprising species in its waters. We stepped into the wooden ...