The leatherback sea turtle is one of those animals you can post on your friend's Facebook page to cheer them up after a shitty day. Because damn, look at the cute little guy.
"There is no reason I shouldn't be flying right now."
But if you're utilizing the leatherback turtle for its powers of adorableness, make sure that you don't take a picture of it while it's yawning, because oh God, Jesus no, it looks like the sarlaac.
Those hundreds of jagged stalactites that line the turtle's mouth and esophagus all the way down to its horrible, horrible gut are called papillae, and they exist because the universe hates beauty, and also because the leatherback turtle's diet consists entirely of jellyfish and other soft-bodied, slimy invertebrates. Anyone who's ever tried to catch a jellyfish with two spoons would give their left nut for a fork, which is why the turtle is equipped with its own murder cavern. Those jellyfish are going nowhere.