Although, sea stars don't seem to be living creatures because of their lack of fast mobility, they are.
Sea stars are part of the group echinoderms which means spiny skin. A sea stars has five arms and it can regenerate itself as long as 1/5 of its body is still in tact. Sea stars feed by the suction in their feet, they wrap for instance a clam and pry it open. Even though it sounds very easy it take quite a while for the sea stars to move. Once it is open, the sea star will spit out its stomach and digest the clams soft body by spitting up enzymes to help it digest. Sea stars also have predators, they are eaten by sea gulls as well as crabs and certain types of fish.
