VANCOUVER - The jellyfish has drifted the seas for at least 650 million years and the boneless, brainless and heartless animals have become a major draw for the Vancouver Aquarium. The facility just ...

The skyward gaze of one set of eyes belonging to box jellyfish provides evidence that these creatures -- which lack a conventional brain -- are capable of sophisticated behavior. New research has ...

Jellyfish: Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish ...

With a baking hot summer just starting, millions of Americans have already begun flooding the nation’s beaches. They’ll face traffic jams, algae blooms, sunburn and a rising threat – painful jellyfish ...

For Caribbean box jellyfish, learning is literally a no-brainer. In a new experiment, these animals learned to spot and avoid obstacles despite having no central brain, researchers report September 22 ...

Will we soon be forced to eat jellyfish? Since the beginning of the 2000s, these gelatinous creatures have invaded many of the world's seas, like the Japan Sea, the Black Sea, the Mediterranean Sea, ...