Most popular dog and cat breeds

A Yorkshire terrier prepares to be judged during the Crufts dog show in Birmingham, England, in 2014.

A Rottweiler is shown as the American Kennel Club reveals the most popular dog breeds of 2016 at AKC Canine Retreat in New York City on March 21, 2017.

A poodle is taken outside on the first day of the Crufts dog show in Birmingham, England, in 2015.

French bulldog Ollie is dressed as the superhero The Arrow outside the San Diego Convention Center at Comic Con International 2015.

Two beagle puppies play as American Kennel Club officials announce the annual list of the most popular dog breeds in the U.S in 2010.

A bulldog rests before competing at the 141st Westminster Kennel Club Dog Show on Feb. 13, 2017, in New York City.

Rumor the German shepherd poses for photos after winning Best In Show at the Westminster Kennel Club Dog Show on Feb. 14, 2017, in New York City.

A Labrador looks out from its bench at the Crufts Dog Show in Birmingham, England, on March 11, 2017.

A sphynx cat is held at the Supreme Championship Cat Show in Birmingham, England, in 2012.

A Siamese cat sits in its cage during the Supreme Championship Cat Show in Birmingham, England, in 2015.

A Ragdoll cat during the TICA international cat show in Wuhan, China, in 2016.

Tizian, a Persian cat, gets a last-minute brushing before judging at a competition in Berlin in 2012.

An owner poses with her Oriental shorthair cat during an international cat exhibition in Bishkek, Kyrgyzstan, on March 19, 2017.

A Maine coon cat is presented during a cat exhibition in Bishkek, Kyrgyzstan, on March 19, 2017.

A Birman cat sits during an international cat show in Israel in 2009.

Uno, an American shorthaired cat from Trenton, N.J., is seen during a Meet the Breeds event at the Westminster Kennel Club Dog Show on Feb. 11, 2017, in New York.

An Abyssinian cats licks another after winning champion titles among young cats during an international pedigree cats exhibition in Warsaw, Poland, in 2001.