As a walking dog speeds up, each rear foot that steps forward is quickly followed by the front foot on the same side. Eventually, it begins to look as if the two feet on the same side of the dog’s body are moving forward together. However, if you look closely, or view a slow motion video, you’ll see moments when three feet are on the ground, and thus, this gait, called the amble, is still a form of the walk. An amble is essentially a fast walk.