RIO NEGRO, Brazil (WTHR) - One of the most popular things to do in the Amazon rainforest is fishing for piranha. In Sept. 2015, photographer Steve Rhodes and I spent several days at the Anavilhanas ...

A giant piranha has been found in a British river today, nearly 7,000 away from its native home in the Amazon River. Environment Agency fisheries workers found the dead killer fish in the East Okement ...

Six years ago, the fish ecologist Rodney Rountree was on a skiff in the Peruvian Amazon. He was holding a piranha in his hand…underwater…in a river filled with ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Thousands of fish ...

There’s more to Brazil than the Olympics: There’s the Amazon River, 4,000 miles long and teeming with 3,000 species of fish, including the deadly piranha. Join NBC’s Keir Simmons as he goes fishing ...

A freshwater Amazonian fish has evolved scales with microscopic armorlike structures specially designed to resist a piranha's piercing bite, new research shows. Arapaima gigas is the largest — and ...

Learn more about piranhas, why they have such a powerful bite, and why there are so many misconceptions around them.

A purring monkey, a vegetarian piranha and a flame-patterned lizard are among the most fascinating species to be discovered in the Amazon rainforest over the last four years. At least 441 species of ...

A monkey that purrs like a cat and a vegetarian piranha are just two among hundreds of new flora and fauna discovered in the lush Amazon forest. The newly-discovered species of titi monkey, Callicebus ...