The Megapiranha is an extinct piranha species that grew up to 22 pounds and 28 inches long. It existed about 8 to 10 million years ago during the Late Miocene period. Not much is known about the ...

The uploader of the video, who labeled them piranhas, has not responded to requests for comment. An earlier version of this story presumed the fish were piranhas, but after we received comments on ...

Although there are eight species of piranhas in Paraguay, attacks usually come from the serrasalmus marginatus and the serrasalmus maculatus, which can be found in both Paraná and Paraguay rivers.