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

In an underground cave of southern China, an eyeless river creature with an externally “visible” skull moved through the dark waters. Its hard-to-reach home helped it go largely unnoticed. But when ...

A video of a gloriously creepy anglerfish inspired tears and poetry online. But why was this deep-sea dweller near the ...