Tetras are one of the most popular and diverse types of freshwater aquarium fish. With more than 150 unique types of tetra ...

Since 1984, five specimens of the new species have been found in the waters of Vanuatu and New Caledonia, according to a ...

Fish use nearly twice as much energy to hover as to rest, revealing that staying still in water is anything but effortless.

Mesmerizing, kaleidoscopic, and fabulously exotic, the huge variety of types of saltwater fish to pick for your aquarium will ...

In a mid-sized lake of Switzerland, a “robust” creature with “slim” bumpy lips swam through the shallow water, or it tried to, at least. But something zapped it and caused it to float to the surface.

Anemonefishes are a group of damselfishes “that exclusively live symbiotically with sea anemones,” researchers said in a July 10 study published in the peer-reviewed journal ZooKeys. They are ...

On a floodplain in the Democratic Republic of the Congo sat a shrinking pond, doomed to eventually dry up. Inside its murky waters swam a scaly blue creature with “large” yellow eyes. Something about ...

Dave Tiefenthaler, a teacher by trade, has set a lofty goal for his angling avocation: catch 1,000 fish species and create an ...