Stingray
In fact, the stingray is one of the most dangerous sea creatures of all time because of its deadly sting. They crawl into the sand in shallow seas and can hurt if swimmers stepped on them. Stingrays can be found all around the world in tropical and subtropical waters. There are roughly 220 different species.
The tail of a stingray is long, slender, and tapering, like a whip. A sheath covers one or more barbed spines at the end of the tail. Each stingray's spine contains venom, and the stingray's tail may deliver a severe, excruciating sting. Stingrays hide in the sand to seek prey, making them difficult to spot and easy to step on if you don't notice them. If stingrays are attacked, they will defend themselves by whipping their tail, which can extend up and over their head, causing a cut or puncture hole on your skin.