Topic - Jellyfish

Jellyfish are animals of the phylum Cnidaria. They are a monophyletic clade, the Medusozoa.Most of them live in the oceans, in salt water, where they eat small sea animals like plankton and little fish, and float in the sea. Only a few jellyfish live in fresh water. They have soft bodies and long, stinging, venomous tentacles that they use to catch their prey, usually small plankton animals or small crustaceans or tiny fish. Some jellyfish hunt others by stinging cells called nematocysts. A jellyfish is 97% water