The deep ocean is home to the largest ecosystem on Earth, but we’ve only explored a tiny portion of it. Despite the enormity of our seas, new species are discovered all the time thanks to ...

A study reveals how seabream change sex and why some males invest more sperm, rewriting the hidden biology of these fish.

Fish were discovered to make sounds more than 2,000 years ago, but they have gone largely unheard by humans. While a typical, ...

It's long been a staple on seafood menus and in frozen fish fillets at the grocery store. But dig a little deeper and orange roughy (also known as deep sea perch) is actually one of the most ...

A spherical sea sponge discovered in Antarctica, Carnivorous cladorhizid, is a carnivore, trapping and devouring live animals ...

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

Scientists analyzed the DNA of fish in the Galapagos Islands and discovered a colorful new species with white speckles, a study said. Photo from Getty / iStockphoto Swimming through the crystal blue ...

For the sake of first-hand reporting, the Peabody-award-winning journalist Katie Thornton let a creature known as the vampire ...

Invasive sea lampreys, grotesque parasites with rows of teeth inside their circular mouths that drain the blood of fish, ...

Speckled sea trout, also known as spotted sea trout, are a popular inshore gamefish species found across the eastern and southern coasts. While they resemble their freshwater cousins in looks, these ...