The Payara, often called the vampire fish, is one of the most aggressive predators in South American rivers. In this video, I ...

Marine animals can be fascinating and quite beautiful. However, you should not approach some of them. Certain fish and jellyfish are highly poisonous, and contact with them can sometimes be fatal.

Colorado might not be home to predators like alligators, sharks, or water moccasins, but it's got a few fish that can bite back. While Centennial State aquatic life probably won't kill you, it could ...

Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who know what they’re doing, that can actually be the fun of it. These ...