I Love all Dog Breeds: 5 of the healthiest dog breeds. This adorable puppy is an Australian Cattle Dog, and has a life expectancy of 29 years! Australian Cattle Dogs are prone to develop retinal atrophy, which eventually leads to blindness.
Shikoku by SaNNaS on deviantART. This breed goes back to medium-sized dogs that existed in Japan in ancient times. The Shikoku was bred as a hunting dog, mainly for hunting boar in the mountainous districts of Kochi Prefecture.