Box jellyfish get their name from their cube-shaped bell, with long tentacles trailing from each corner. When alive in the water, those tentacles can stretch several feet. "Unlike most jellyfish, they ...

SeaWorld San Diego’s newest attraction is an aquarium full of jellyfish species that has guests of all ages feeling like they’ve stepped into an underwater lava lamp with these otherworldly creatures.

Discover the incredible mystery of Turritopsis dohrnii, also known as the Immortal Jellyfish . It's the only animal that can technically reverse its aging process and potentially live forever. In this ...

Purple jellyfish have appeared earlier than usual on several Greek beaches, with sightings reported in eastern Greater Athens and Evia as warmer waters fuel coastal blooms. Credit: Flickr / Hans ...

SAN FRANCISCO (KGO) -- Blue jellyfish-like sea creatures are once again washing up along the Northern California coast, drawing crowds and curiosity at local beaches. Thousands of the creatures, known ...

The creatures live on the surface of the water and wash up on beaches in the spring and early summer months. Despite their deceiving appearance, these flat, oval-shaped animals are not technically ...