Deputies from the Volusia Sheriff's Office assisted a Mola Mola fish stuck on a Florida beach, hauling the 5,000-lb. fish to deeper water ...

The typical dorsal fin is a triangular-shaped piece of skin wrapped around muscles and bony spines or rays that sits on a ...

These dark green fish, native to Africa, have sharp spines across their dorsal fins that they raise to ward off predators. We ...

A huge Mola Mola fish, also known as an ocean sunfish, found itself stranded near the Florida coast. What's a very large and ...

Making up for the world's disappointment that there wasn't a prehistoric creature living in a Scottish loch was the South African discovery of a strange, steel blue fish with limb-like fins. The fish ...

Their streamlined torpedo shape helps them gather enough underwater speed to break the surface, and their large, wing-like pectoral fins get them airborne. Flying fish are thought to have evolved ...

You may be aware that Chinook salmon return from the ocean to their spawning grounds in Idaho, but what you might not know is ...

Owners should also watch out for infection and diseases such as fin rot, dropsy, and swim bladder disease. While Betta fish can tolerate dirty water for a short period, long exposure can cause ...

The coelacanth has gills similar to those of fish living at the depths in which ... these fishes' paired lobe fins are supported by the same basic bones as your arms and legs.