Even a boneless, gelatinous sack lacking a dedicated anus and brain needs its beauty sleep, a new study by researchers from ...

The benefits of sleep may be more universal than we thought. We know it helps clear waste from the brain in humans, and now ...

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 ...

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 ...

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 ...

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

Strange jellyfish lights that appeared above thunderstorms around the world recently had people talking online. Many were puzzled and curious, with some even speculating wild ideas about alien ...

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 ...

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 ...