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.

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 ...

This story appears in the October 2018 issue of National Geographic magazine ... curator who oversees the care of the aquarium’s jellyfish, tells me. “They don’t have a brain, and yet ...

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The ...

The upside of rising jellyfish numbers? Many animals eat them The upside of rising jellyfish numbers? Many animals eat them Jellyfish and human eyes assembled using similar genetic building blocks ...

Beautiful, Golden Jellyfish Invading Fisher's Nets Is a New Species Beautiful, Golden Jellyfish Invading Fisher's Nets Is a New Species Beautiful, Golden Jellyfish Invading Fisher's Nets Is a New ...