It's not easy looking good for photographs, and that rule doesn't just apply to humans. While smiling is a natural instinct for us homo sapiens (well, for some of us at least), it isn't so easy for other animals. That's not to say that they don't try. They do. But as you can see from this hilarious list compiled by Bored Panda, they generally end up failing. Big time. They do however succeed in making us laugh.