Seppala Siberian Sled Dog (SSSD). If you’ve never feasted your eyes on a SSSD before here are some pictures of a great looking girl. She turned one year old in December. If that isn’t an athletic body for a dog I don’t know what is. All she wants to do is run, if she happens to be hooked to something to pull along behind her, she digs in because it’s just a minor inconvenience.