It has rather short oral arms and feeds mainly on zooplankton and other jellyfish. For the most part, jellyfish are solitary creatures, drifting through the ocean alone. However, sometimes huge masses ...

Jellyfish are known for drifting to and fro at the whim of ocean currents—but not all species are so passive. The millions of golden jellyfish that pack Palau’s Jellyfish Lake spend much of ...

The infamous box jellyfish developed its frighteningly powerful venom to instantly stun or kill prey, like fish and shrimp, so their struggle to escape wouldn’t damage its delicate tentacles.