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 ...

Meet the giant phantom jellyfish. It's over a metre (3ft) wide and has four ribbony arms that trail behind for up to 10 ...

Good question! As climate change continues to affect the ocean, the number of jellyfish is expected to increase in some regions and decrease in others. Warmer waters often favor jellyfish growth, but ...

This jellyfish is very small in size. Its height and width are about 4.5 millimeters, which is less than the size of a little ...

The lights change from purple to red to green to yellow to orange to blue — and so do the jellyfish. The moon jellyfish at Sea Life Orlando Aquarium are translucent, so the animals reflect the light ...

Vinegar has been another popular remedy for jellyfish stings. In many cases, it can deactivate venomous cells that haven’t ...

For years, science fiction has promised a future filled with robots that can swim, crawl and fly like animals. In one research lab at Caltech, what once felt like distant imagination is becoming ...

Most people think the great white shark is the ocean predator they should fear the most. However, this type of jellyfish, statistically speaking, is much deadlier. Sharks are probably the animal that ...

At Delaware's Lewes Beach, Beach Patrol Captain Strohm Edwards has seen more jellyfish this year than any other and stings have tripled. Along the Nantucket Sound shoreline, researchers believe ...