a species of fish related to piranhas. Nearly 200 years later, scientists conducting genetic analyses on a population of M. schomburgkii in the Amazon River discovered that the fish they were ...

The Amazon is the second-largest river in the world and is home to various species of creatures. Although the river passes ...

River pirates and guerrilla rebels. Jaguars in the rain forest, piranha in the water and armed ... a Brazilian island in the Amazon that juts out into the Atlantic. They followed the coast ...

Piranhas are fish that live in the Amazon River and lakes in South America, known for their razor-sharp teeth and fierce attacks on other kinds of fish. But are they really as aggressive as they ...