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.

The newly characterized “elegant jellyfish,” roughly the size of a human hand, had been on display in two aquariums in Japan for more than a decade. Lisa Winter became social media editor for The ...

AN international research team of scientists from two colleges and the National Museum in the Philippines, as well as a university in Australia and the Smithsonian Museum in Washington, D.C., have ...