Explaining Nature on Instagram: "A stingray is a flat-bodied fish closely related to sharks, belonging to the group known as cartilaginous fish (their skeletons are made of cartilage instead of bone). Stingrays have wide, wing-like pectoral fins that they use to gracefully “fly” through the water, often gliding just above the seafloor. Their eyes are positioned on top of their bodies, while their mouths, nostrils, and gill slits are located underneath—an adaptation that helps them feed on prey h