They are an invasive species in other oceans, where they can cause serious damage to the delicate ocean ecosystem. They are definitely one of the coolest deep-sea creatures, though.

An entire world lives deep under the ocean’s surface, far from human notice and as bustling as any city. Animals such as tubeworms and clams live crowded around plumes of methane that bubble up ...

You don't have to look to outer space to find creatures that are nothing like you would expect to find on Earth. The fish ...

"Here we go, baby!" "Yes!" Narrator: This is a dead whale, which scientists recently discovered at the bottom of the Pacific Ocean covered in all kinds of creatures from bone-eating worms to deep ...

Helm, then a fledgling marine biologist about to begin her PhD research, recognized the organism as a by-the-wind sailor (Velella vellela), a jellyfish-like creature with a rigid sail to ferry it ...

Imagine a squid as long as a bus or a crab the size of a big plate! This is called deep-sea gigantism, where animals grow much bigger than their cousins in shallow waters. These creatures ...

Bringing in marine life from sources like that would help ease aquariums’ reliance on the ocean, Vuori said. The general manager added that a “significant portion” of the animals are sent ...

Thousands of small creatures washing ashore on the Central ... They sometimes arrive during windy conditions after an upwelling in the ocean. You should not touch them because they can cause ...