The U.S. government is mounting an emergency response in an effort to save a unique and endangered fish found off the coast of Florida. The details are strange. The National Oceanic and Atmospheric ...

Can fish freeze in winter? In this video, we explore what really happens to fish in cold weather, how they survive under ice, ...

Every year as part of the city’s St. Patrick’s Day celebrations, thousands of onlookers clad in green cheer on a boat crew sprinkling orange powder into the Chicago River to turn it a festive shade.

Before squaring up for a fight, some fish check themselves out in the mirror to make sure they're big enough. This strange behavior was seen in bluestreak cleaner wrasse (Labroides dimidiatus), who ...

A mysterious ailment causing fish in the Florida Keys to spin in circles has touched off a frantic race to find the cause and save an endangered species before it’s too late. Eight months into ...

While a dominant male fish from northern Mexico mates with a female, a small fella bides his time in the offing. Suddenly, the little guy darts in ahead of Mr. Big and plants his seeds on freshly laid ...

Scientists have found prized Siamese fighting fish are typically being kept in conditions a quarter of the size they need to thrive, challenging decades of retail practice in the multi-million dollar ...

The Intelligence of Bettas The predictability of the Betta Fish’s behavior sets up an excellent experimental baseline from ...

BIG PINE KEY, Fla. — As the end of the legislative session came to a close last week in Tallahassee, legislators added an item to the state budget that would fund research on a marine mystery ...