Sightings of these peculiar fish have become more frequent in UK waters in recent years, possibly linked to warming sea ...

Teetering near endangered status, the starlet sea anemone produces “an ancient mechanism” for fighting viruses that ...

A well-worn expression among oceanographers and others who explore the watery depths of planet Earth is that we humans “know the surface of Mars better than our ocean floors.” Covering more than 70 ...

Lionfish, mitten crabs and “sea vomit.” Meet eight marine species inadvertently brought to new territory that are taking the ...

The cuttlefish is one of the most extraordinary animals on Earth. In less than a second, it can transform its color, pattern, ...

Footage shows paper nautilus moving its tentacles from inside its shell and gazing through one of its eyes.

A research expedition off the coast of Brazil has documented more than 30 new deep-sea species, from translucent worms to ...

Hidden beneath the water's surface is a botanical world that is among nature's most innovative and ecologically important.

These real-life ocean animals were so terrifying to seafarers that they became embedded in history as legendary sea monsters ...

It might share its name with the largest meat-eating dinosaur that ever lived, but this isn’t the T.rex we all know and ...