Some animals, like the Quokkas and red pandas, couldn't look grumpy if they tried. While we love them for making us smile, sometimes you need a Grumpy Cat to remind you that everyone has bad days and only idiots smile all the time. Of course, when you're really having a bad day, just one grumpy cat still isn't enough.
That's where this great article from the San Diego Zoo comes in -giving you even more grumpy critters to make your frown into more of a scowling smirk. Granted, some of these animals might not actually look quite as grumpy as the legendary Grumpy Cat herself, but they're still in a bad enough mood to make me feel better.