Fish

The 14-foot great hammerhead washed ashore on a beach in Alabama. Researchers have since dissected the expectant mother but are unsure exactly what killed her.

The 10-foot-long female stopped breathing after locals tried several times to coax her back into the water. The cause of the animal's death remains a mystery.

The never-before-seen fish was spotted 5 miles below the ocean's surface in the Izu-Ogasawara Trench near Japan.

Last year, scientists described a weird goblin shark in a scientific journal despite never setting eyes on it. Experts now question the review process that approved the study.

This rare video, showing two megamouth sharks swimming off the coast of San Diego, is scientists' 'only knowledge' of the sharks' social lives.

One of the largest ancient fish on record, known as Dunkleosteus, was actually half as long, but still super chunky, a new study finds.

The remains of a missing person from Argentina were recently found inside the belly of a dead school shark. But experts say it is improbable that the shark killed him.

Pictures from a submarine dive to the 20,000-foot-deep Kermadec Trench in the South Pacific reveal weirdos from the deep, some of which may be new to science.

A great white shark recently decapitated a Mexican fisher as he was diving for shellfish. But what was the reason for the unusually gruesome attack?