Crabs are among of the most common types of crustaceans in the ocean. There are hundreds of different species found in most marine environments around the world. They have managed to achieve a wider variety of shapes and colors on the coral reef. Most Crabs are covered with a thick, hard exoskeleton and have a single pair of claws. Most crabs are scavengers and will eat just about anything they can find or catch with their claws.
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