Fish

Fish smell is from degrading lipids and bacterial reactions that increase in potency over time.

In the 1990s, a group of juvenile bull sharks were left stranded in a golf course pond in Australia, where they thrived for decades. Now scientists are trying to understand why.

Researchers tracked more than 200 bull sharks off the coast of New South Wales to find out exactly when they were most active and posed the greatest risk to humans.

Lampreys belong to an ancient group of fish called Agnatha that evolved 450 million years ago, predating both dinosaurs and trees.

A new study has found that the famous Australian lungfish Methuselah, who first arrived in the U.S. in 1938, could be up to 101 years old.

Anglers in Texas reeled in a 283-pound alligator gar after a lengthy battle with the enormous fish. Experts say the catch likely breaks a 72-year record.

Researchers have discovered that hundreds of great white sharks that vanished from their home off the Western Cape of South Africa have moved east in order to survive — but this could spell trouble for both the sharks and the people living there.

Every austral summer, Rangiroa and Tikehau atolls in French Polynesia host a mysterious assembly of female great hammerhead sharks — a critically endangered and typically solitary species.

Hogfish can not only change colors but also "see" with their skin.

Believed to have gone extinct at the time of the dinosaurs, the coelacanth has one of the longest gestation periods on Earth — and it can hunt in a headstand.