Piranhas are indigenous to the Amazon basin, in the Orinoco, in rivers of the Guianas, in the Paraguay – Paraná, and the São Francisco River systems, but there are major differences in the species richness.

Nov 21, 2025 · Piranhas range from northern Argentina to Colombia, but they are most diverse in the Amazon River, where 20 different species are found. The most infamous is the red-bellied piranha …

Aug 7, 2025 · Piranhas are fairly small, usually under two feet, and typically travel in groups called shoals. Piranha is the common name used to refer to any of potentially over 60 species of freshwater …

Jun 12, 2025 · While piranhas can be dangerous, attacks are rare and usually provoked. Understanding and respecting their habitat reduces risks and allows harmonious coexistence.

Apr 8, 2025 · Take piranha fish, a toothy South American freshwater fish that has been the subject of not one, not two, but five Hollywood horror movies. Sure, they've got big teeth, but are piranhas really as …

Piranhas are freshwater fish native to South American rivers, streams, lakes, and floodplains. Scientists believe there may be anywhere between 40 and 60 different species.

Predatory, with their dentition they are able to bite pieces out of larger prey, as opposed to having to swallow their prey whole, as do most North American freshwater fishes. Often feed in schools and …

There are several dozen species of piranha. These creatures have lived in South America for nearly 2 million years – and their ancestors are thought to have inhabited South America rivers for as much …

Renowned for their razor-sharp teeth and reputation for frenzied feeding, these fish have captured the imagination and instilled a sense of primal fear. This complex and ecologically significant predator is …

Physical Description Red-bellied piranhas are red on their undersides from chin and cheeks to belly. The head and body are various shades of gray; their sides are flecked with bright silver scales. The …