As of May 2014, starfish are considered to be threatened. Also known as sea stars, these marine animals are easily preyed upon because they are unable to move quickly. Their underwater predators include fish, rays, crabs and sharks.Continue Reading
The shoreline is equally problematic for starfish, where their predators are marine birds as well as humans who may seek to take home an oceanic souvenir. Pollution in recent years has also played a role in the decline in the number of starfish.
Starfish live in oceans worldwide and are generally comprised of a center disk with five arms. They move about with the use of a hydraulic water vascular system rather than a jointed skeleton.Learn more about Starfish
Starfish have sharp spines that serve to deter possible predators and make a starfish look like a rock, helping it blend into the background. Some species of starfish have a chemical coating on their bodies that gives them a bitter taste. Others produce poisons in their outer body walls.Full Answer >
The key to determining if a starfish is alive or dead is to look for movement. However, because starfish are not the most mobile organisms on the planet, it can be difficult to tell if they are alive or dead. If you cannot observe any movement at all, the starfish is probably dead.Full Answer >
Starfish, also called sea stars, are poisonous to humans. The sun star, the leather star and the crown of thorns are examples of poisonous starfish that cause minor to severe toxicity in the human body.Full Answer >
Certain species of starfish are edible. In some countries, such as Japan, starfish is considered a delicacy. Starfish can be baked, boiled or deep fried. The legs must be severed and opened to reach the edible flesh inside, which is scooped out with a small fork or spoon.Full Answer >