This jellyfish species has a clear body, can glow green and has an almost unnoticeable sting, Jace Tunnell writes.

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 ...

SeaWorld San Diego announced Wednesday its newest exhibit, Jewels of the Sea: A Jellyfish Experience, will officially open on ...