The fish weighed 608 pounds, which is also about the same size as an adult male grizzly bear. It garnered the second highest bid at the Toyosu Market since records began in 1999 ...

Koi fish have got a lot going for them. "[They are] not only a pet, but also art," says Taro Kodama, president of Kodama Koi ...

Experience the virtual world of aquarium simulation with Behind Glass. Create stunning aquascapes and care for a variety of ...

The distinctive bristlenose pleco is a favorite among fish enthusiasts – and it’s no wonder. They are visually stunning, ...

The amount of sperm released decreased sharply with each mating during a single day, reducing the males' fertilization rate.

New research shows about a quarter of animals living in rivers, lakes and other freshwater sources are threatened with ...

Nearly a quarter of the world's freshwater species are at risk of extinction due to a multitude of threats, according to new research.

Although freshwater habitats cover less than 1 percent of the Earth's surface, they support 10 percent of known animal species.