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

The video documents a private fish-buying trip conducted outside typical public channels. Several acquired species display traits that raise questions about care requirements, legality, and long-term ...

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

Watching an octopus punch an annoying fish is hugely satisfying to frustrated humans. And other animals do the ...

Researchers recorded more than 1,000 fish sounds in Barkley Sound, an inslet on the coast of Vancouver Island in British ...

Studies reveal fish don’t just react by reflex. Their nervous systems prioritize pain, triggering stress and trauma that can last minutes.

Fish are one of the species in the world with the most diversity. These aquatic animals come in different shapes, colors, and skeletal compositions. Some are endemic to freshwater habitats, and others ...

Tuna, opah, and billfishes such as marlins and swordfish are among the 0.1% of fish species that are warm-blooded. Evidence by an international team of researchers led by UC San Diego’s Scripps ...

Can we finally retire the myth that goldfish have three-second memories? This oft-cited “fact” has been thoroughly debunked. Scientists have shown that fish can distinguish and remember individuals, ...