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(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 ...

(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 ...

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 ...

What is a Pacu fish? The Pacu is a South American freshwater fish that's related to piranha but has key differences. The fish is vegetarian and has teeth that look similar to those of humans. The Pacu ...

In 1914, former U.S. president Theodore Roosevelt was traveling in Brazil when locals set up a demonstration of sorts. They had barricaded a shoal of piranhas in part of a river and then starved the ...

Add Yahoo as a preferred source to see more of our stories on Google. Thousands of fish species — about 2,500 of them named — call the Amazon River home, but scientists estimate nearly half of the ...

(CNN) — 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 ...