They’re among the Earth’s simplest creatures, composed of 95 percent water, with no spines, brains or hearts, but jellyfish ...

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

Mucus from jellyfish that sit upside-down on the seafloor has blobs lined with stinging cells The stinging cells are coated on tiny mobile blobs called cassiosomes within the mucus that “zoom ...

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 ...