Dachshunds have soulful eyes and complex facial expressions. Their lungs are large for a dog this size and they have a barrel-like chest. Because of these things, Dachshunds have a loud, deep bark that sounds as though it comes from a much larger dog. And they do like to bark, which is something you might consider if you have neighbors who could be annoyed rather than amused by the antics of your brave little Dachshund.