Warm-blooded fish is an agile predator. An opah captured during longline surveys by the Southwest Fisheries Science Center. NOAA Fisheries West Coast — -- With its tire-sized frame and awkward ...

OCEAN CITY, Md. - A sport fishing crew that made headlines last month has caught yet another of the same rare fish. Austin Ensor and his fishing crew have caught another rare opah fish in West Ocean ...

The fish buyer noticed something different about the large, colorful, disc-shaped opah waiting to be sold at the auction house in Honolulu. Among the differences: One fish had a bigger eye than the ...

With its disc-shaped body, silvery belly and bright orange fins, the deep-diving Opah is an odd fish to begin with. Adding to its enigma, researchers recently found that there’s not one or two, but ...

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The opah, or moonfish, is kind of like the Rudolph of the fish world. It's not at all like the other reindeer -- um, I mean fish -- but its unique quality makes it incredibly cool. Well, make that ...

Most fisherman would consider themselves lucky to catch one elusive opah fish in their lives, but one recreational fishing boat landed three in one day this on recreational fishing boat landed three ...

SEASIDE, Oregon -- A large colorful fish washed ashore on the Oregon coast last week in what aquarium officials called a rare occurrence. The 100-pound (45 kilogram) opah fish, also known as a ...

Researchers have discovered the first fish that warms its body much like mammals and birds. Has this bottom-dwelling anomaly been hiding in its deep, cold water home, evading scientists for years? Not ...

SEASIDE, Oregon -- A large colorful fish washed ashore on the Oregon coast last week in what aquarium officials called a rare occurrence. The 100-pound (45 kilogram) opah fish, also known as a ...