WWF warns invasive amazon sailfin catfish are spreading in Pakistan, endangering native fish, biodiversity and freshwater ...

Red Fish Blue Fish, a specialized online fish retailer based in Washington State, has expanded its inventory to include tropical freshwater fish species. The company, which is focused on rare and ...

Stefan Lovgren writes on how freshwater fish from the Arctic to Africa are endanged by climate change and the unpredictable ...

Antarctic icefish are famous for living without red blood cells, but they are not alone. A species of needle-shaped, ...

The top bidder for the prized tuna at the predawn auction was Kiyomura Corp., whose owner Kiyoshi Kimura runs the popular ...

The world still holds its secrets. Hidden under wet rocks, in the ocean’s twilight crevices, and in the minutiae of the ...

New species are being discovered faster than ever before — at a rate of more than 16,000 every year, suggests a new study.

A tiny fish long feared lost has resurfaced in Bolivia, offering a rare conservation success story amid widespread habitat ...

In the early 2000s, José Juan Flores Martínez was studying for a bachelor’s degree in biology and working as a volunteer in a ...

Congressional Republicans who want to delist several endangered species of predator now have an ally in the administration.

Over 50 Triassic coelacanth fossils of mawsoniid, found mislabeled in British museums, show these ancient fish thrived in ...

From polygamous tree toads to heavy stick bugs, this year’s extensive new species discoveries are changing the way we see our ...