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 ...

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.

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 ...

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 ...

Fish can have all sorts of quirky behaviors, but spotting your fish lying motionless at the bottom of the tank can be a cause for concern. While it might look alarming, this isn’t always a sign of ...

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 ...

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 ...

BIG PINE KEY, Fla. — A marine mystery has researchers searching for answers in the Lower Florida Keys. Since December, 20 critically endangered smalltooth sawfish have been reported dead, according to ...