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

While exploring under a dock, I discovered a mystery fish that looks like it belongs in an aquarium but I’ve never seen ...

The U.S. government is mounting an emergency response in an effort to save a unique and endangered fish found off the coast of Florida. The details are strange. The National Oceanic and Atmospheric ...

Biologist and underwater photographer Joseph Ricketts captured charming footage of the river chub, a small freshwater fish with big mating habits. When temperatures reach 65 degrees in spring, male ...

The Volusia County Sheriff's Office said it recently helped to rescue a strange fish that swam too close to shore and got stuck in shallow water. Deputies said they identified the fish as a Mola Mola, ...

(CNN) — The bear scientists shot in the Canadian arctic in 2016 was a biological mystery. It looked like a grizzly bear, complete with long claws and a prominent snout, but most of its fur was white.