The Great Dane is a friendly, patient, and dependable dog who are categorized in the working group of dog breeds. The most common colors for Great Danes are black, blue, fawn, brindle, harlequin, mantle, and merle. The Great Dane has a short, thick, smooth coat. It sheds moderately, but requires little grooming. They are known as a large breed with a height ranging from 30-32 inches for males, and 28-30 inches for females. Their average weight is 140-175 pounds for the males, and 110-140 pounds for the females. Their life expectancy is 7-10 years.