Massive Dolphin Die-Off in Amazon River Linked to Record-High Water Temperatures

Over 150 pink river dolphins have died in Lake Tefé in Brazil's Amazonas state, with scientists attributing the deaths to extreme heat and drought, possibly linked to climate change and the El Niño phenomenon. The water temperature in the lake has reached 102 degrees Fahrenheit, causing disorientation and asphyxia in the dolphins. Authorities are also investigating the possibility of a biotoxin or virus causing the die-off. With El Niño and record-breaking heat expected to continue, researchers fear more dolphins could die. The deaths highlight the broader impact of heat and drought on South America's ecosystems, with other regions also experiencing wildlife die-offs and environmental degradation.