Jellyfish have existed for 500 million years. Their great numbers and a diversity of some 4,000 species make them one of the most important creatures of the deep. A JAMSTEC research team has been ...

Some jellyfish species can regenerate body parts or revert to an earlier life stage, granting them potential biological ...

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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 ...

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, ...

Jellyfish have survived for over 500 million years, making them more ancient than the dinosaurs. Today these otherworldly creatures can be found around the world, from coastal shallows to the ocean ...

A jellyfish species has killed more than 200,000 salmon in Scotland in what is believed to be the single worst incident of it type, campaigners say. The String of Pearls Jellyfish (Apolemia uvaria ...