Staurozoa or stalked jellyfish, and Hydrozoa. In an article on its website, the National Oceanic and Atmospheric Administration described jellyfish as being a "blob" made up of 95% water ...

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 ...

In Mallorca they are referred to as 'barquetes de Sant Pere', Saint Peter's sailboats. They are from the same family as the ...

A previously hidden under-sea ecosystem has been revealed after an iceberg broke away from the George VI Ice Shelf, a massive ...