Digging holes is more than just fun. It's one of a dog's most essential jobs. Without holes, there are large areas of dirt that a dog simply can't investigate — areas that might contain any number of things to be sniffed, eaten, or rolled in.
Perhaps even more importantly, holes are a form of self-expression which allowing dogs to broadcast their perspective to the world. Let's take a look at a sample of the most impressive holes we saw this year.