An “iridescent” catfish torpedoed through a rushing blackwater river in Brazil, navigating dead leaves and wood. Little did it know it was soon to be discovered as a new species. Once the “large” fish ...

A new species of dartfish, characterized by vibrant coloring, was recently discovered, researchers said. The reef dweller, which is about an inch long, had previously been confused with another ...

The snailfish is one of the deepest-living marine species in the ocean, and there is still much to discover about them.

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

In a river of northern Myanmar, a colorful creature with a “large” mouth swam through the water. The “unique” animal caught the attention of passing scientists — and turned out to be a new species.

Aggressive little male fish from Indonesia turn black when angry to show their dominance, scientists discover. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

From a butterfly shaped by 40,000 years of isolation to creatures 1,400 feet below the sea, scientists uncovered thousands of ...

In a stream in southern China, a new species was found lurking under the rocks, waiting for nightfall. Zhong J-H, Yang J, Mo H-L, Chen W-C (2024) Zoosystematics and Evolution On a sunny day along a ...

Fairy wrasses are swimming jewels, flitting and flouncing about coral reefs. The finger-length fishes’ brash, vibrant courtship displays are meant for mates and rivals, and a new study suggests that ...

A fisherman in Minnesota has caught a sunfish with a rare genetic mutation that makes its skin golden. Terry Nelson was fishing for sunfish and crappies on Lindstrom Lake, in Chisago County, when he ...

A new species of catfish was discovered from a river in Brazil, according to researchers. Photo shows a representative area of a river. Photo by Felipe Dias on Unsplash An “iridescent” catfish ...