Fish

Harmful subsidies must be eliminated if ocean fish are going to remain for future generations.

Not all coral reefs emerge from naturally occurring objects on the sea bottom.

What's the healthiest way to cook fish?

Fish have fins and gills, but they don't have necks. That's partly because it would be difficult to swim quickly with a neck that wagged back and forth in the water.

A tiny clue hidden in the bizarre eyes of the 300-million-year-old remains of a "Tully monster" has helped scientists determine that the curious creature is a vertebrate, a new study finds.

Filter-feeding fish accomplish a feat that human technologies cannot: filtering huge volumes of water without clogging their oral filters.

When a group of researchers crossbred cichlids to learn about their genetics, they discovered an unusual development in one of the hybrid females.

Move over, Mediterranean diet.

Some fish look odd, but a mysterious, green-eyed fish recently pulled out of Nova Scotia's waters is downright bizarre.

Communities of deep-sea marine life cause a low-frequency humming in the ocean, as the creatures swim to and from the surface to feed.

A Muppet-faced fish with a lanky body more than 6 feet long gulped down plankton in Earth's ancient oceans about 92 million years ago, a new study finds.

The ocean can be a deep and dark place, but the so-called "ninja" shark can light up its surroundings with a dimly glowing head, a new report says.

Electric eels have a shocking way of demobilizing their dinner.

A tourist to the Red Sea left with an unwanted souvenir: a pair of fish jaws in his eyelid, according to a new report of the case.

Before the dinosaur age, the coelacanth — a hefty, mysterious fish that now breathes with its gills — sported a well-developed lung, a new study finds.

Eat a lot of fish may lower the risk of depression, a new analysis suggests.

Think sharks only live in the ocean? Think again.

When boy guppies pester the girls they like, it can actually make the female fish better at swimming away, a new study finds.

A stroll on the beach turned strange for two co-workers this week when they stumbled upon a giant (and newly deceased) deep-sea creature that had made its way ashore.