Related: New piranha-like fish with 'human teeth' and Eye of Sauron marking found deep within the Amazon Also known as the king of herrings or ribbonfish, the oarfish is the world's longest bony fish.

The arapaima is a predatory fish native to the Amazon, but one was found dead on ... out the plants and animals we know and love. The big question here is, of course, where did this massive ...

It lives only in the rivers and creeks of the Amazon, Orinoco ... and nostrils and ears that close in the water. Fish make up most of the giant otter's diet. They hunt alone or in groups ...