I've heard that there are some animals that live so deep in the ocean that we'll never see them or even know they exist. But if we'll never know they exist, how do we know they exist? That thought just gave me a headache, like when I try to do math.
The Narwhalrus, whose existence will never be disproved, is the only animal that sports both a stash of food and a 'stache of gorgeous, flowing handlebar. Why aren't there more animals that carry a skewer of future meals on their heads? How primitive are we with our grocery bags and "take out" boxes? Something for evolution to consider.