Crossbreed mutts tend to be healthier as they have a diverse genetic makeup.
America's favorite dog is relatively healthy with an average life expectancy of 10-12 years.
Small but hardy, Chihuahuas can live 15-20 years with few genetic issues.
Energetic Border Collies are a healthy working breed with few health problems.
This athletic breed thrives in cold climates and typically lives 12-14 years.
Loyal and smart, German Shepherds tend to have good overall health with proper care.
Bred to work, Australian Cattle dogs are robust, athletic, and not prone to genetic conditions.