6- Labrador Retriever:
They make excellent family pets because are lovable, loyal, and great companions. Their bad luck that they are among other dogs with the highest cancer rate. They have a lifespan of 10-12 years. Once they gain weight they do not loose it very easily, so be careful to keep them fit. Some of the general health conditions that impact the breed include canine elbow, shoulder and hip dysplasia and osteochondritis dissecans.
Image source