Pack Order
If you have a dog in training, one of the first things a teacher will tell you is to establish yourself as the alpha dog or the pack leader. The alpha dog is the top dog and the one who sets the rules for the pack that all other dogs follow. The alpha dog gets to eat first and gets the best sleeping spot. Speaking of sleeping, the alpha dog sleeps higher than dogs lower in the pack. From a certain vantage point, they are on a pedestal.