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Sea stars are animals that live in the ocean. The starfish is one of the unique beautiful animals of the ocean. He is known for starfish, which means starfish, although this animal has nothing to do with fish. Starfish has 2000 species that almost entirely live in the entire ocean in the world, here I will explain the two types of starfish Spinulosida and Solasteridae.

The first is Spinulosida, this animal belongs to the greatest class of Echinodermata. This animal also has another name that is the sea star bat karna their shape is like a bat. Species Spinulosida is living free or colonized in the sea, this animal has 5-9 arms, this species has many colors including green, purple, red and others. On the surface of his body there are thorns of various sizes formed on lime. Mouth and tentacles as well as tube feet are located on the bottom surface.

The second: namely Solasteridae or often called "death fish" because of this species of predators, this is the strongest species 9 of the 10 strongest sea stars. This species has 9-10 tentacles, sometimes also up to 13 tentacles. This species has 2-3 short spikes on its body, with 2 rows of tube feet.

Generally, starfish do not live afloat, they are like most animals that live in the coral, they walk on the sand bottom of the sea using tubular small legs such as sea urchin or sea urchin. Usually they have 5 to 10 tentacles, but some species have 40 tentacles. They are not like most other animals have brains and blood in fact they do not have it, because their nervous system spreads throughout their tentacles. Starfish also have a lizard-like defense system where the starfish can release their tentacles when there is a predator near them and they can regenerate their tentacles in about 1 year.

Sea stars are often considered to be detrimental to humans, but in fact have many benefits such as for treatment, cream, oil or cosmetics made from gamat them. However, this makes the starfish decreases. by @master-steem