Jellyfish sting for two reasons, says researcher Tone Falkenhaug. First, they sting to catch food. "Jellyfish don't have ...

Researchers have mapped the distribution of a jellyfish subspecies and found that creatures which lack a distinctive "knob" ...

There are so many different types of jellyfish out there, boasting different sizes, shapes, colors, and more. The immortal ...

This species is native to the western Pacific Ocean but has invaded new areas by hitching rides in the ballast water of cargo ships.

In this shocking fish autopsy, a jellyfish catfish is discovered to have swallowed a jelly catfish whole offering a rare and ...

The distribution of a deep-sea jellyfish species with two different traits hints at the existence of an unknown biogeographic ...

This remarkable sea creature resembles the softest, rainbow-colored blanket gently floating through the deep ocean. A video ...

If, by chance, you are stung by box jellyfish, which are found in tropical areas like the Indian and Pacific Oceans and not in Delaware, you will need medical attention and antivenom medication.