Creepy marine creature caught on underwater camera

Check out this eerie deep-sea footage that captures either the most spectacularly cool creature to roam the oceans, or the grossest thing we've ever seen. It's attracted both high-brow and low-brow comments on YouTube with speculations about what exactly it is ranging from a whale placenta to a Dementor to (the maximally obnoxious) Mick Jagger's lips. Meanwhile, it's racking up views from self-proclaimed experts who say it's actually a sighting of the slow-swimming deepstaria enigmatica jellyfish that's "either dead or in the last stages of dying." Whatever it is, it will make you think twice before diving under the surf this summer.