In the murky waters of the Amazon, pink river dolphins exhibit a surprising behavior. Jets of urine sprayed into the air may play a key role in their social interactions. These cetaceans, known as ...

Researchers say they have made a startling discovery in the Amazon River. But their evidence wasn’t collected from the water—it could be seen from shore. After around 219 hours of observations, they ...

T he Amazon river is the largest drainage system in the world in terms of water volume and its drainage basin. The 6,400 kilometer (4,000 mile) river flows from the Andes Mountains of Peru ...