Amazon river dolphins are highly specialized predators that rely on echolocation to hunt in the murky, low-visibility waters ...

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 ...

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 ...