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 ...

STORY: These rare freshwater dolphins, known for their striking pink color, are only found in the rivers of South America. But climate change and drought are threatening the species. Now, a team of ...

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 ...

Dolphins are usually grey and quick in the open ocean. In rivers, though, they can be different. In the Amazon, there’s a ...

Strange discoveries are normal in the largest rainforest on Earth, from the thousands of Amazonian "Stonehenges" to the world's largest snake ever found on record that was recently discovered in the ...