More than 300 new species of freshwater fish were identified around the world by scientists last year, the third most in a year since 1758. ● Tampa Bay is facing one of its worst water shortages in ...

"These are the kind of fish that can reproduce up to six times in the summer." Officials drain park pond after discovering ...

Older than dinosaurs, these 8 ancient fish existed millions of years earlier and some still survive today in oceans, rivers ...

Not all fish play by the same reproductive rules. Evolutionary biology reveals how deception became a successful mating ...

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it ...

A new fish species has been recorded in Nebraska after a fisherman reeled in the colorful creature. “We hear about new species in Nebraska from time to time, but most of them are unwanted, invasive ...

Pinks, the smallest Pacific salmon species, are booming. That's spelled trouble for other fish species struggling for ...

A new fish species has emerged, but it does not hail from the realm of Mordor as its name suggests. The relationship between pacus and piranhas has been closely studied by researchers and while the ...

For decades, scientists used a mirror experiment to explore whether animals could recognize themselves. In that test, ...