When you buy through links on our articles, Future and its syndication partners may earn a commission. Some specimens of the jellyfish subspecies Botrynema brucei ellinorae have knobs on their bells ...

In the cold darkness deep beneath the waves of the Arctic Ocean, a hidden barrier appears to separate the haves from the have-nots. There, in the midnight zone more than 1,000 meters (3,280 feet) ...

"The differences in shape, despite strong genetic similarities across specimens, above and below 47 degrees north hint at the existence of an unknown deep-sea biogeographic barrier in the Atlantic ...

Researchers seem to have discovered a boundary in the deep ocean that separates two kinds of gossamer jellyfish. This boundary supposedly exists deep in the Arctic Ocean, at what is called the ...