Dramatic underwater photos capture the elusive Amazonian pink dolphins red-handed.

"You couldn't put your finger in the water," said the lead author of the study, which spotlights the impacts of planetary ...

A severe drought and heatwave turned Brazil's Lake Tefé into a deadly cauldron, with water reaching 41°C. Hundreds of ...

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.

In fall 2023, hundreds of river dolphins turned up dead in Brazil’s Lake Tefé. At the time, researchers didn’t know what had killed them—but they had a strong suspicion. Unusually high water ...

Some of the lakes have exceeded 40°C (104°F), a temperature not suitable for the river dolphins and fish.

TEFÉ, Brazil — Each morning for the last several weeks, researcher Miriam Marmontel has gazed out at Lake Tefé and the Amazon River, through a thick curtain of smoke from thousands of wildfires raging ...

PUERTO NARINO, Colombia (AP) — 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 ...

Brazil extends moratorium on fishing for piracatinga, which are often caught using river dolphins as bait River dolphins across Brazil have a little extra breathing space after the government suddenly ...