But brook trout, after expanding to new streams, face stiffer competition as warming threats worsen.

A 400-million-year-old jawed fish fossil found in the Arctic, Romundina gagnieri, could be a key link in the evolution of ...

Interspecies communication was once thought to be rare outside of humans and apes, but research has shown it occurs in a ...

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 ...

Have you ever wished you could swim like a fish? How about speak like one? In a paper recently published in the Journal of ...

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 ...

Life on our home planet dates back to hundreds of millions of years before the arrival of the dinosaurs. Among the most ...

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 ...

The fish is described as "an airbreather and can live a considerable amount of time out of the water" getty An invasive species of fish has been found slithering in Missouri once again, with officials ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Paleontologists ...

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 ...