The French Bulldog is a gentle breed that typically has a happy-go-lucky attitude. Like many other companion dog breeds they require close contact with humans. They have fairly minimal exercise needs, but do require at least daily walks. Their calm nature makes them excellent choices for apartment dwellers, as does their usually sensible attitude towards barking. The breed is small and muscular with heavy bone structure, a smooth coat, a short face and trademark "bat" ears. Prized for their affectionate natures and even dispositions, they are generally active and alert, but not unduly boisterous. As a flat faced breed, it is essential that owners understand that French Bulldogs cannot live outdoors. Their bulk and their compromised breathing system makes it impossible for them to regulate their temperature efficiently. In addition, Frenchies are top heavy and therefore have a difficult time swimming. Precautions must be taken when exercising a Frenchie during hot or humid weather, as well.