Thousands of fish species — about 2,500 of them named — call the Amazon River home, but scientists estimate nearly half of the marine creatures lurking in the massive stretch of water remain ...

OSLO (Reuters) - Scientists have found a new type of piranha and a ray among 13 new species of freshwater fish in an area of Venezuela where pollution from gold mines is emerging as a threat, a ...

Piranha is a general name used to describe a group of freshwater fish with a fearsome reputation when it comes to feeding. There are between 40 and 60 different species; none grow larger than two feet ...

(CNN) — A toothy toadstool. A vegetarian piranha with a distinctive mark. And a pygmy pipehorse floating in the Indian Ocean shallows. These wild wonders were among the hundreds of previously unknown ...

Swamp People star Zak Catchem sparked a social media frenzy earlier this week when he shared footage of what he described as a “massive 50-pound piranha” caught in a city park pond. Zak posted a video ...

Starting in 2009, adventurer, biologist and angler Jeremy Wade stood waist-deep in rivers around the world to catch and reveal hidden species. Titled “River Monsters,” his show ran for nine seasons ...

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