The Man o' War is a large, jellyfish-like marine creature known for its striking appearance and powerful sting. It is not a single organism but a colonial organism made up of four specialized polyps that work together. The body is a gas-filled bladder that can float on the surface of the ocean, while long tentacles hang down to capture prey. Found in warm ocean waters, the Man o' War can be dangerous to humans due to its venomous tentacles, which can cause painful stings. Despite its beauty, it is important to exercise caution when encountering this creature in the wild.