Jellyfish

Jellyfish is a kind of sea animal that belongs to the class Scyphozoa. Jellyfish is not really fish. It’s invertebrate animals. It doesn’t have backbone. In fact, it doesn’t have bones at all. It body is shaped like an umbrella tufted. Some jellyfish can make the itching of the skin upon contact. there are about 1,800 types of jellyfish in the world.

Jellyfish has stomach and mouth, but it doesn’t have head. It has a nervous system to sense the world around them, but it doesn’t have brain. Jellyfish made almost entirely of water, which is why you can see through them. Some jellyfish can glow in the dark with the light of it own making. The light is created by a chemical reaction within the jellyfish. Jellyfish make a light may be to scare off predators or to attract the animals they like to eat.

Type of jellyfish is the most dangerous of the group Cubozoa. Tentacles sting can cause death. Jellyfish is the most deadly of these groups is the Irukandji jellyfish, which is small in size. This jellyfish live around the coast of Australia. There are giant jellyfish named Nomura which is can grow up to 2 meters in diameter and weighs 220 kg.

Jellyfish move by using “Underwater Current”. If we imagined it, it looks like a river that flowing so fast. They eat little fish, prawn, plankton and little creatures in the sea. Jellyfish catch them using tentacles that has a sting that will stun the fish and then, the jellyfish will move them into its mouth.

Most jellyfish live in salt water, a part from a few types that live in fresh water. Jellyfish are found in oceans and seas around the world. They live in warm, tropical seas and in the icy waters near the North and South poles.