Batoidea, or rays, are the largest group of fish whose bodies are made out of cartilage instead of bones—similar to their relatives the shark. Rays are easily identifiable by their flat bodies with elongated fins attached to their heads, and gills placed on their underbellies. There are three groups of rays, the Manta ray, Stingray, and the Spotted Eagleray. All rays have a tail with a poisonous barb on the end that is used for self-protection and can cause serious harm or even death in its target. Some rays are shy while others are sociable, they live in sandy areas, open water, or coral reefs, and can be found in every ocean.
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