Jellyfish
Jellyfish are the informal common names given to the medusa-phase of certain gelatinous members of the phylum Cnidaria. Kingdom: Animalia Phylum: Cnidaria Class: Scyphozoa Order: Semaeostomeae Family: Cyaneidae Scientific name: Cnidaria Cubozoa Jellyfish are boneless animals that float freely through the world's oceans. They live in coastal areas. There are a lot of kinds of jellyfish in the world, they can be found in all shapes and sizes. There are proximately 2,000 different species of jellyfish. The most common one is the big and colourful jellyfish found in warmer coastal areas. There are four types of jellyfish that are categorized by their shape and the way they behave. Actually, jellyfish are not real fish but instead they are classed in a special group. The body of jellyfish is made up of a non-living jelly-like substance called mesoglea. This jelly is surrounded by a layer of skin that is just one cell thick. The body 90% is made of water. Jellyfish have te...