Jellyfish.
Jellyfish are truly captivating creatures of the sea, celebrated for their delicate, umbrella-shaped bodies and gracefully flowing tentacles. These remarkable beings belong to the phylum Cnidaria and the class Scyphozoa. It's fascinating to note that some jellyfish-like organisms are part of other categories, including Cubozoa, known as box jellyfish, and Hydrozoa. Their unique forms and movements remind us of the beauty and mystery of the ocean, inviting us to learn more about their role in the marine ecosystem.