When Arnolds and I got scared!
Sting rays are related to sharks as cartilaginous. This one has one barbed sting on the tail used only for self-defence and underneath has two grooves filled with venom glands. Sting is covered in cartilaginous skin.
Excluding some subcategories, stingrays are usually docile and curious and very often flee at any disturbance. Their use of the poisonous sting may cause serious injuries and sometime death, though.
Peace.
Stingray agitating the sand and trying to go beneath it to conceal itself. It feeds on molluscs and crustaceans and from time to time on small fishes. Some species have only sucking mouthparts, but others have two powerful shell-crushing plates. Stingrays settle on the bottom while feeding and during high tide share the feeding ground with sharks.
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