A tiny fish that averages only 2.5 inches in length derailed political careers, delayed construction of a massive dam and reservoir, caused a U.S. Supreme Court landmark case and prompted ...

The ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a "living fossil." A new discovery reveals that it evolved faster when plate ...

But step on one, and you’ll never forget it. There are more venomous fish in the seas than snakes on land—or indeed, than all venomous vertebrates combined—but the stonefish is one of the ...

Some types of “walking” fish called sea robins can use their taste bud-covered legs to detect prey buried beneath the sandy covering of the seafloor.

Evolution has a habit of doing its weirdest work in places most of us never see—pitch-black caves, remote sinkholes, deep-sea ...

Hudson River Fish Evolve Toxic PCB Immunity. Bottom-feeding fish in the Hudson River have developed a gene that renders them immune to the toxic effects of PCBs, according to new evolution research.

But as a representative for fish—which comprise around half of all known vertebrate species—the zebrafish and its startling slumber hint that multistage sleep may have been present in a common ...

For example, it took about 20,000 years for a chihuahua to evolve from a wolf. But can organisms evolve more quickly? And what influence can people have on the evolution of organisms? How are the wolf ...

As a young person, I, like any number of Jewish children, received an early lesson on mortality and heartbreak from a book called “The Carp in the Bathtub.” Published in 1972, the book ...

The ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a "living fossil." A new discovery reveals that it evolved faster when plate ...

Some types of “walking” fish called sea robins can use their taste bud-covered legs to detect prey buried beneath the sandy covering of the seafloor. CNN values your feedback 1.