Facts about Starfish

 

As is obvious from its name, Starfish is not a fish. Starfishes are also known as sea stars. There are about 1900 subspecies of starfish. They have relatives like brittle stars. Starfishes do not have blood and heart too! They also do not have brains. These marine animals live near the sea beds in oceans. They breathe through skin gills or papulae in which they diffuse oxygen from their surroundings. One fact is that if one tries to cut its arms, then it it will grow again! Many species have 5 arms like in this picture but some species have 6-15 arms. Sunflower sea stars are the largest and fastest of them. They are also one of the slowest marine animal on Earth.