These two dogs may look different, but that's where it ends. The big white dog is a Slovac Cuvac and the other dark with brownish markings is a mixed breed. They are the best of friends. The Slova Cuvac is about 10 months old (just a big puppy) and the mixed breed is about 8 years old...he is the leader of the pack and a puppy at heart. They are having a fun time in the park. They love having their picture taken, as you can tell. LOL!