While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Scientists Stumble on First-of-a-Kind Golden Cavefish That Still Appears To Be Evolving, Baffles Them Deep within the dark ...

Their ability to "walk" along the ocean floor using their pectoral fins adds to their unusual appearance. The mola mola, or ocean sunfish, is one of the heaviest bony fish in the world.

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 ...

Researchers classify the coelacanth under the group Sarcopterygii, which include the earliest ancestors of amphibians, reptiles, and mammals.

In a world where new species are constantly being discovered, some creatures remain hidden in the depths of the ocean, ...

They can retract their dorsal and pectoral fins into slots to reduce drag ... size by gorging themselves almost constantly on smaller fish, crustaceans, squid, and eels. They will also filter ...

Usually growing from 3.5 to 4.3 inches as adults, these medium-sized fish are translucent silver on their sides and olive to iridescent pink on their back. Their most distinctive characteristic is ...

Using a sharp filleting knife, make an incision behind both pectoral fins behind the head of the fish. Flip the fish onto its belly and cut the head off, straight through the backbone. Throw the ...

Usually growing from 3.5 to 4.3 inches as adults, these medium-sized fish are translucent silver on their sides and olive to iridescent pink on their back. Their most distinctive characteristic is ...