Sea cucumbers are not the most attractive of sea creatures (consider that the donkey dung sea cucumber is named after the thing it resembles). Basically, they’re sausage-shaped sacks with a mouth and an anus, and they can evert their digestive systems when disturbed. See? Not attractive. However, the tiger tail sea cucumber is striking when you see it underwater. They stretch out from beneath rocks, reeeaaallly long. And they do look rather like a tiger tail. We saw this specimen while snorkeling between Big Farmers and Big Galliot Cays in the Exumas, Bahamas.