Flower Hat Jellyfish (Olindias formosa), Monterey Bay Aquarium, California. (Photo credit:  Wikipedia ) Jellyfish are gelatinous zoopla...

A Moon Jellyfish. (Photo credit:  Wikipedia ) Moon jellyfish ( Aurelia aurita) are from the phylum Cnidaria . This phylum contains over...

Flower Hat Jellyfish (Olindias formosa), Monterey Bay Aquarium, California. (Photo credit: Wikipedia ) Keeping jellyfish as pets is st...

Cassiopeia xamachana - Wikipedia Upside down jellyfish (Cassiopeia xamachana) is another member of the order Rhizostomae. The species n...

Jellyfish have survived for 650 million Years. They belong to the phylum Cnidaria. This phylum is divided into definitive classes which inc...