Doctors have explained why you should never pee on a jellyfish sting as a giant phantom jellyfish is spotted off the coast of ...

Officials say warm water and winds likely pushed the jellyfish into shallow waters ...

A newly described blue jellyfish in Japanese waters has stunned researchers with an otherworldly glow that looks less like a ...

Scientists spotted a rare jellyfish with huge ribbon-like arms deep in the ocean, where dozens of possible new sea species ...

Sleep is usually associated with complex animals with brains and nervous systems, but new research suggests it may be far older, and far more basic, than previously thought.

Jellyfish are some of the most dangerous creatures in the ocean. Just touching the wrong one can lead to a swift death. And ...

A tiny jellyfish, Turritopsis dohrnii, possesses a remarkable ability to reverse its life cycle, effectively defying ...