That wasn’t supposed to be there. An angler in Utah reeled in a fish much larger than he was expecting while on a trip to Highland Glenn Pond. Not only was the size of the fish a surprise, but also ...

Is a goldfish the "Loch Ness" of a small South Carolina lake? Or is a small koi on the loose? The identity of this fish remains a mystery. Parks and recreation workers in South Carolina found what ...

Koi carp are one of the most iconic ornamental fish in the world. Originally hailing from Japan, these beautiful fish have amazingly patterned bodies. There are many varieties–– and some of them are ...

Once a simple food fish, koi have transformed into living jewels, with some fetching sky-high prices in the global luxury market. Here's how this happened. In the world of high-end pets, few creatures ...