The American Kennel Club, the nation’s purebred dog registry, considers adding new breeds to its index each year. It’s a strict verification process. There are over 300 dog breedsIt is known around the world, but the AKC officially recognizes 193 breeds.

To identify the newest dog breeds, Tempo checked around the clock the dog breeds recognized as registrable by the AKC for the past 10 years. Information about race group, temperament, and life expectancy is also from the AKC.

A potential breed must have a proven US following – that is, there must be a national association with at least 100 members. There must also be a sizable population in the country of at least 300 to 400 dogs of the same breed, all of whom have a pedigree of three generations.

There are also geographic requirements. The breed must be found in 20 or more states. Other considerations include observations by AKC field workers, contests, and specialty shows. The process often takes years.

These requirements largely explain why the AKC has only recognized 32 new breeds since 2010 (and none in 2017). Some of the breeds, such as the Xoloitzcuintli, are ancient and have changed little over millennia, but may have been introduced into this country only recently. Other breeds such as the Argentine Dogo were created in the 20th century.

The latest additions to the AKC register are cosmopolitan: one is from Argentina, one from Belgium, two from France, one from the Middle East via Italy, one from the Netherlands, and one from West Africa. Interestingly, all of the recently added items were used for hunting and / or retrieving game.

Many people get their dogs when they’re just puppies and form bonds that will last a lifetime. Some dog owners may privately wish their puppy would never grow up – These are 20 dogs that will stay puppies the longest.

Click here to see the latest dog breeds that you’ve probably never heard of