Fish can be a lively and entertaining addition to your natural swimming pool, and certain species can bring numerous benefits ...

Out in the wild, we spotted a flash of brilliant orange—and couldn’t believe our eyes. A giant shiny koi fish was swimming ...

A stellar nursery 3,600 light-years away from Earth has taken the shape of a brilliant koi fish. Astronomers in Chile captured the celestial swimmer using the VLT Survey Telescope (VST), offering ...

Fish that do survive and reproduce in Kansas may be designated as an invasive species. The KDWP reports these species can hurt the natural environment by: Diminishing food supplies and degrading ...

At Niigata’s annual Koi Show, held in November, visitors mill about, gazing at the various colorful carp swimming in large, blue viewing tanks. The term ornamental fish typically brings to mind ...

These mesmerising pictures show thousands of Koi carp swimming around an abandoned shopping ... a tropical haven for exotic creatures after the fish were introduced to combat a mosquito problem.