Bones from an Amazon pink river dolphin are embedded in dried mud along the banks of Lake Tefé in Tefe, Brazil, on Oct. 31, 2023. More than 200 river dolphins died in the 2023 drought that sent water ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

A dolphin was captured on camera urinating into the air as another dolphin swims nearby in a rare occurrence that has left researchers and viewers bewildered. The newly resurfaced footage, originally ...

Entanglement in fishing nets and habitat loss are the greatest threats to dolphins. River dolphin populations are severely fragmented due to the building of dams. Some subpopulations of dolphins are ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — Picture a ...