But most martial arts have real world applications though, though ground fighting is something that should be avoided as much as possible, because asphalt + possibly glass shards is not a good combo for your health.
Why do dogs sniff? Dogs sniff to identify, for the majority of cases it is to sniff whether or not there is danger. A dogs sense of smell is much greater than that of a human being and it can smell things from a further away distance than many other animals as well as humans.
Dogs pant when they are hot, but heavy dog panting means something is wrong with the dog. It can be due to overheating (heat exhaustion), or if your dog pants even while resting, it may mean that he has some underlying health problem, such as a heart problem.