The common name for the starfish is the sea star. There are an estimated 1500 living species of these marine animals characterized by having no back bone (invertebrate) and having arms which are all around the body with locomotery tubed feet. Generally starfish are rather stiff bodied animals that crawl slowly accorded the bottom of the ocean floor. Their mouth is directly under them . They have arms radiating all around them, each arm has many rows …showed first 75 words of 271 total…

…showed last 75 words of 271 total…beds. Sometimes some species of starfish have population explosions that damage coral reefs through over feeding on the coral. Some adult animals feed on starfish but they don't taste very well nor are they nutritious. Scientific Classification, Starfish belong to the phylum Echinodermata. They constitute the class Asteroidea The star fish is the most un common animal in the marine aquariums and The marin biologists are not fastinated by the animals in the marine world .