These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Deep in the ocean, you can find a strange fish with teeth not just in its mouth, but also on its head. The spotted ratfish, a relative of sharks, measures about two feet long and is found in the ...

The Atlantic wolffish is known for its powerful bite, capable of crushing hard-shelled prey with ease. Now, researchers have ...

More like 20,000 screams under the sea. Footage of a bizarre, ocean-dwelling wolffish that has two sets of scary-looking teeth is making waves online. The clip of the deep sea denizen’s nightmarish ...

The next time you wince from an ice-cold drink or a too-hot slice of pizza, blame your ancestors. Specifically, the armor-plated fish that swam Earth’s oceans over 460 million years ago. A new study ...

It's not what you do, it's how readily you do it. Rapid evolutionary change might have more to do with how easily a key innovation can be gained or lost rather than with the innovation itself, ...

An 11-year-old Oklahoma native has reeled in an exotic catch — one that is most certainly not native to Oklahoma. Charlie Clinton of Edmond, Oklahoma, caught an exotic, invasive fish known as the Pacu ...