The river's width varies from 1 to 6.2 miles during the dry season, but expands to over 30 miles wide in some parts during the rainy season ...

The weird way dolphins are peeing in the Amazon River is baffling scientists - Mysterious behaviour may be form of ...

The 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 ...

Researchers say they have made a startling discovery in the Amazon River. But their evidence wasn’t collected from the water—it ... Dominant male African cichlid fish (Astatotilapia burtoni) interpret ...

Scientists studying Amazon river dolphins in Brazil have observed males spraying urine into the air, a ritual for communication.

Pete Casey’s epic, six-year trek along the entire length of the Amazon River nears its final steps for his ambitious journey. There was the pit viper that bit his pant leg. River pirates and ...

Researchers say they have made a startling discovery in the Amazon River. But their evidence ... pulses for both reproductive and territorial information. The narrow-clawed crayfish (Astacus ...

Male Amazon river dolphins have been documented rolling upside down and firing a stream of urine into the air. As if that isn’t bizarre enough, other males will usually seek out the urine as it ...

After five years of planning, design, construction and animal acquisition, Caldwell Zoo‘s long-awaited Amazon River’s Edge ...

FILE - Residents look out at the Madeira River, a tributary of the Amazon River amid a drought in Humaita, Amazonas state, Brazil, Sept. 7, 2024. (AP Photo/Edmar Barros, File) ...