The sea creature — which was first spotted in 2002 in a deep-sea volcanic structure in ocean waters south of Tokyo, Japan — has a bright red "X" on its stomach.

The brilliantly named Pacific sea nettle is a red-tinted jellyfish that lives in the northeastern Pacific Ocean. Taking its name from its sting, ...

Known as a Lion’s Mane Jellyfish, the animal is a member of the largest jellyfish species in the world, according to the ...

Jellyfish such as these Northeast Pacific sea nettles in Monterey Bay Aquarium, are brainless, bloodless and mostly aimless. John Lee / Aurora Select On the night of December 10, 1999, the ...

A new species of jellyfish has been discovered deep below the waves, and it may possess venoms that we have never seen before. The new species, named Santjordia pagesi, was discovered at a depth ...

The scientists caught the jellyfish, which are abundant in Norway’s fjords, with fine mesh nets and brought them below deck of their research vessel for study in dim rooms illuminated with red ...

As for the unique red cross, Morandini said it "probably has to do with capturing food." Scientists say they have found a new species of Medusae — a type of free-swimming, umbrella-shaped jellyfish.

Scientists say they have found a new species of Medusae — a type of free-swimming, umbrella-shaped jellyfish. The sea creature — which was first spotted in 2002 in a deep-sea volcanic ...