Very beautiful blue jellyfish, spinning like dancing with the group...!!!

Jellyfish is a type of marine invertebrates belonging to the phylum Cnidaria, the jellyfish referred to here are animals from the class Schypozoa, so they are often called true jellyfish so as not to be confused with other animals which are also called jellyfish such as: Ctenophora (comb jellyfish) and Cubozoa (box jellyfish). As members of Cnidaria, they have two body shapes, namely polyps attached to the seabed and medusa which can swim freely and are inverted cup-shaped.