<p>Dogs are social animals who naturally live in packs. Essentially, we humans are their pack. Dogs have evolved to be fully dependent on their human families for all of their physical, mental, and emotional needs. Isolation is severely distressing for dogs. A dog on a chain is separated from his pack and forced to live a solitary life. This leads to severe and sometimes dangerous behavioral problems.<br><br>The Centers for Disease Control and the American Veterinary Medical Association warn that chained dogs are about 3 times more likely to bite and have more behavior problems. It’s also difficult to provide good care to a chained dog&nbsp;because chains catch on obstacles, putting dogs at risk of strangulation and injury, or leaving them unable to reach their food, water, or shelter. Also, chained dogs are more vulnerable to attacks by other dogs and wild animals.</p>