This collection of photos from Seth Casteel features hilarious dogs underwater. We don't usually toss the word "cute" around too often, but sh*t, take a look at Casteel's series, Little Friends Lifestyle Pet Photography, and embrace its charm. Mans best friend makes for the best underwater photography we've seen in a long time. Continue to check out a gallery of Seth Casteel's underwater dogs. [LittleFriendsPhotos]