A fish is an animal that lives in the sea, rivers and lagoons. There are many kinds of fish such as jellyfish, shark amoung others.

Jellyfish are typified as free-swimming marine animals consisting of a gelatinous unbrella-shaped bell and trailing tentacles. The bell can pulsate for locomotion, while stinging tentacles can be used to capture prey.
Jellyfish are found in every ocean, from the surface to the deep sea.