Each time the tide recedes, most fish escape certain death by following the water. But not the prickleback. This uncanny eel-like fish has a trick up its sleeve — it can breathe air.

Paleontologists have uncovered a new species of prehistoric fish with nostrils that could have been one of the first creatures to breathe air. This revelation, Knewz.com has learned, could help ...

Take fish, for example. Unlike land animals, fish get their oxygen from water, not air. They don’t have lungs to breathe with either, they have gills. Fish gulp water through their mouths and ...

Betta fish—also known as Siamese fighting fish ... Because their usual habitats are extremely low in oxygen, bettas have evolved to breathe air at the water’s surface. This ability develops ...

The northern snakehead is not alone in this ability: Walking catfishes, lungfishes, and betta fish can all breathe air directly as well. These fish reach sexual maturity between one and three ...

Sea snakes are reptiles, not fish, and although they have adaptations which help them swim in the water, they still require air to breath unlike all known species of fish. The snakehead fish has a ...

A record bowfin was caught on a NJ creek on a warm day last month. Bowfin are living fossils as they're last survivor of a ...