A number of blue jellyfish-like sea creatures have once again been found beached up and down the San Diego shoreline.

Sonoma County Regional Parks staff shared a photo taken this week that shows a carpet of creatures known as Velella velella littering the beach at Stillwater Cove Regional Park.

Covering beaches around Mallorca. The barquetes de Sant Pere have filaments with stinging cells, the same type as jellyfish.

How many species of jellyfish are there? Jellyfish are sometimes called sea jellies. They belong to a group called Medusozoa which is divided into four classes: Hydrozoa, Scyphozoa, Cubozoa and ...

A previously hidden under-sea ecosystem has been revealed after an iceberg broke away from the George VI Ice Shelf, a massive glacier on the Antarctic ice sheet. Researchers from Schmidt Ocean ...