When alive, this jellyfish glows in the dark and has a nasty sting. The little hitchhiker probably ate the jellyfish’s tentacles and now gets a free ride in the ocean current.

Deep below the ice, a helmet jellyfish pulses by Laurent. Exposure to direct sunlight is lethal for it, so it stays in the darkness. Far above, bathed in seeping light is Laurent's team, their tiny ...

a girl exclaims. “I think they’re just mesmerizing,” Jennie Janssen, the assistant curator who oversees the care of the aquarium’s jellyfish, tells me. “They don’t have a brain, ...

This included details on the Dark Instruments he can deploy and the sharks, apes, and jellyfish they summon to fight baddies. Alongside the more traditional Mad Dog style Majima has used ...

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 ...