A newly discovered golden cave fish in southwestern China is giving scientists an unprecedented look at evolution in action.

One of the 'world's rarest' fish species that was presumed to be extinct, the Chel snakehead, was rediscovered in the town of Kalimpong in West Bengal in 2024.

One of the most fascinating features of many fish is their scales. These tiny, often overlooked structures play a big role in a fish’s survival, protection and movement through water.

A rare fish species thought to be extinct for over 80 years was ... a bright neon patch beneath the eye, and the highest number of lateral-line scales among all snakeheads of the Gachua group,” ...

Gelao loach fish have “elongated” bodies, reaching over 5 inches in length, the study said. They are largely “scaleless,” but their sides are “sparsely covered with tiny scales buried be ...