With the importation (or migration) of the red fox, Irish Foxhounds were added to the lines, to increase speed and stamina in the dog, qualities still prevalent in today's dogs. Colors, while historically predominantly white with patches of red, black, or brindle, have grown in recent years to include many color patterns including black, red, brown, fawn, and all shades of brindle. George Washington received French Foxhounds, Grand Bleu de Gascogne, (which look much like an American Bluetick Coonhound) as a gift from the Marquis de Lafayette. The breed's lifespan is generally 10–12 years. The breed's lifespan is generally 10–12 years.
A height of about 18 to 19 inches (46 to 48 cm) at shoulders for the male and 17 to 18 inches (43 to 46 cm) for the female is to be considered preferable. They bond strongly with their owners. These dogs began to find their way into America as early as 1870.
Owners will often have their American Foxhounds undergo blood tests so that the condition can be caught early on. It is a spaniel type dog that is closely related to the English Cocker Spaniel; the two breeds diverged during the 20th century due to differing breed standards in America and the UK. However they can easily become overweight when overfed. For hairless to coated matings, there will be an average one to one ratio between coated and hairless offspring. In the United States, the breed is usually called the Cocker Spaniel, while elsewhere in the world, it is called the American Cocker Spaniel in order to differentiate between it and its English cousin. Obo II, was born around this time. Many of the dogs Washington kept were descended from Brooke's, and when crossed with the French hounds, helped to create the present day American Foxhound. As such, dogs are the only animal with such a wide variation in appearance without speciation, "from the Chihuahua to the Great Dane". The following list uses a wide interpretation of "breed". There does not seem to be any gender preference among dogs as pets, as the statistical data reveal an equal number of female and male dog pets.