As a veterinarian, I get asked a lot of different questions about animals. My favorite questions pertain to why animals do the things that they do, including bodily functions. Did you know that dogs can flatulate (aka fart) just like humans can? If you have a dog and a strong sense of smell, then you are probably already aware of this fact. But how much gas is normal, and what are some things that can cause an increase in flatulence? When should you be concerned?