Stingrays are usually very docile and curious, their usual reaction being to flee any disturbance, but they sometimes brush their fins past any new object they encounter. Nevertheless, certain larger species may be more aggressive and should be approached with caution, as the stingray's defensive reflex (use of its poisoned stinger) may result in serious injury or death. Stingrays are not normally visible to swimmers, but divers and snorkelers may find them in shallow, sandy waters, more so when the water is warm.
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