1. Golden Retriever
   English Bulldog
2. German Shepherd
   Staffordshire Terrier

Because the breed is known to be approachable, yet perform when duty calls, German Shepherds are commonly employed in police departments. German Shepherds are known for serving as protectors with law enforcement as well as military personnel.

1. They don't have baby teeth.
   They are hypoallergenic.
2. They are all born with black coats.
   Litter sizes typically only consist of two pups.

The three breeds listed are hypoallergenic. This means that people who tend to be allergic to dogs can tolerate these breeds better. Other hypoallergenic breeds are the Bichon Frise, West Highland White Terrier and Toy Poodle.

1. Bichon Frise
   Bernese Mountain Dog
2. Airedale Terrier
   Wire Fox Terrier

The breed that has won the Westminster Dog Show the most is the Wire Fox Terrier. The Scottish terrier comes in behind the Wire Fox Terrier with eight BIS wins. The Terrier Group as a whole has 46 Best in Shows.

1. American Foxhound
   Boston Terrier
2. Teddy Roosevelt Terrier
   Polish Lowland Sheepdog

The American Foxhound was brought over to the United States from Europe. In 1886, the breed was recognized by the American Kennel Club, making it the first breed recognized in the USA.

1. Rottweiler
   Great Dane
2. Rhodesian Ridgeback
   German Shepherd

Scooby-Doo was modeled after the Great Dane. His character's clumsy nature and large stature take inspiration from the breed. Scooby-Doo first appeared on TV on September 13, 1969.

1. Pomeranian
   Shih Tzu
2. Rat Terrier
   Chihuahua

The famous "Legally Blonde" pup, Bruiser Woods, was a Chihuahua. The canine actor's real name was Moonie. Moonie's housemate was Gidget, the chihuahua seen in Taco Bell commercials!

1. Doberman Pinscher
   Alaskan Malamute
2. Airedale Terrier
   Greyhound

Greyhounds are most noted for their speed, as they used to be used as racing animals. Nowadays, most of these noble canines serve as pets. Only five states still allow greyhound racing to take place.

1. White
   Black
2. Rust
   Brown and white

The German Longhaired Pointer is one breed where a black coat is not allowed by organized kennel clubs. Few other breeds are held to the same standard. This is not to say that this breed cannot physically produce a black coat; rather, it means that they will not be able to compete with one.

1. West Highland White Terrier
   Boston Terrier
2. Golden Retriever
   Whippet

The West Highland White Terrier was originally called the Roseneath Terrier. The original name was taken from a Scottish Duke. Other names include Poltalloch Terrier and White Roseneath Terrier.

1. Docked ears
   Presence of a tail
2. Coat length
   Eye color

Cardigan Welsh Corgis are bred with long tails. On the other hand, Pembroke Corgis are known for their stubby tails. They can be born with them short or they can have them docked to be shorter.

1. German Wirehair
   Basset Hound
2. Shih Tzu
   Yorkshire Terrier

Before its name was updated to the Yorkshire Terrier, the breed was most commonly referred to as a "Yorkie." Because of this, Yorkshire Terriers were often confused with the Scotch Terrier.

1. Australian Cattle Dog
   Beagle
2. Dachshund
   Toy Poodle

While its formal breed name is the Australian Cattle Dog, the breed is also known by Blue Heeler and Queensland Heeler. As the name suggests, this breed is known for its herding abilities.

1. Beagle
   Portuguese Water Dog
2. Labrador Retriever
   Australian Shepherd

Out of 193 formally recognized breeds, the Labrador Retriever is the most common among Americans. It has repeatedly held this top spot over the years. Other popular breeds include the Golden Retriever and the German Shepherd.

1. Border Collie
   Australian Shepherd
2. English Mastiff
   Rough Collie

The famous canine hero Lassie belonged to the Rough Collie breed. A canine actor named Pal portrayed her. Pal was in seven "Lassie" movies released between 1943 and 1951.

1. Rottweiler
   Doberman Pinscher
2. German Wirehair
   Lhasa Apso

While they are small in stature, the Lhasa Apso was known for being a particularly good sentinel. They guarded the interior, while Mastiffs were commonly placed on the outside grounds of estates.

1. Miniature Bull Terrier
   Beagle
2. West Highland WhiteTerrier
   Irish Setter

The famous all-white hound is a Miniature Bull Terrier. Before the name Bullseye, the mascot was known as Spot. While the mascot is a male dog, the character is usually portrayed by a female dog.

1. Dutch Shepherd
   Dalmatian
2. Alaskan Malamute
   Labrador Retriever

As the title suggests, in the movie "101 Dalmatians," Cruella de Vil was looking for Dalmatian puppies to make into a fur coat. While she ended up capturing 101 Dalmatians, she only needed 99 for her fashion endeavor.

1. Appenzeller Sennenhund
   Bernese Mountain Dog
2. Black and Tan Coonhound
   Doberman Pinscher

The Doberman Pinscher has roots in the Rottweiler bloodline. It also takes genetics from the Black and Tan Terrier and the Smooth-Haired German Pinscher. Years of breeding created the unique Doberman Pinscher bloodline.

1. Golden Retriever
   Poodle
2. King Charles Spaniel
   Great Dane

The poodle is known to have an impeccable sense of smell. People with severe food allergies are able to train poodles to alert them to anything that could prove deadly if consumed.

1. Golden Retriever
   Pomeranian
2. Shih Tzu
   Beagle

While they lack the large size that comes with most service dogs, Pomeranians prove useful as Medical Alert Dogs. They can recognize certain medical attacks related to diabetic shock and asthma.

1. English Cocker Spaniel
   Sussex Spaniel
2. Clumber Spaniel
   Basset Hound

Clumber spaniels are the largest breed within the flushing spaniel category. They tend to be clumsy but still serve as great hunting partners. Their name comes from a park located in England, near where the breed originated.

1. Miniature Pinscher
   Maltese
2. Shih Tzu
   Pomeranian

The Maltese was considered a regal canine companion. The Greeks were known to build tombs for their furry friends and even inscribe epitaphs into their departed pet's final resting place.

1. Breed standards call for winter litters.
   Historically, Tibetan weather was the most calm during these months.
2. Tibetan Mastiff females only go into heat once a year, typically in late fall.
   Tibetan Mastiffs reach breeding age around then.

Unlike other dog breeds, the Tibetan Mastiff female only goes into heat once a year. This means that there is only one window of opportunity every year for a female to have a litter.

1. 158
   227
2. 121
   340

There are 340 breeds across the globe. However, the AKC only recognizes 193 breeds. These hundreds of breeds make up the current canine population, which in 2018 was nearing 900 million.

1. Afghan Hound
   Maltese
2. Miniature Bull Terrier
   Labrador Retriever

The famous artist owned an Afghan Hound named Kabul. The dog can be seen in his painting "Femme au chien." There are other Picasso paintings that showcase a Dachshund. This was Lump, his housemate's dog.

1. Basset Hound
   Vizsla
2. German Shepherd
   Weimaraner

The Vizla was almost completely eradicated during World War I. This was because they were popular dogs among Hungarian royals, and the Soviet Union took every opportunity to kill them.

1. Boston Terrier
   German Wire-haired Pointer
2. Cocker Spaniel
   Rat Terrier

The Rat Terrier is said to have gotten its name from Teddy Roosevelt. The name comes from their original use: killing rats. Quite ironically, at no point did Theodore Roosevelt own a Rat Terrier.

1. Vizsla
   Otterhound
2. Bernese Mountain Dog
   Chinese Crested

The Otterhound is one of the most threatened dog breeds in the world. Originally bred for otter hunting, the breed is nearly extinct. Since otter hunting is no longer allowed, the breed's population has decreased.

1. Central Asian Shepherd Dog
   Cesky Terrier
2. Ibizan Hound
   Porcelaine

Cesky Terriers are the national dog breed of the Czech Republic. They are great pets, but with only 600 living in the United States, finding one of these cheery dogs may prove difficult.

1. Parson Russell Terrier
   Shiba Inu
2. Pointer
   The Plott

The Plott family moved to the mountains of North Carolina from Germany, with a group of hunting dogs. From that pack and through careful breeding, they developed the Plott. It was originally used to track bears.

1. King Charles Spaniel
   Mastiff
2. Chow Chow
   Border Collie

Sigmund Freud owned a Chow Chow named Jofi. The breed's friendly demeanor made it a perfect choice for a therapist, and it was said that she calmed his patients during stressful times.

1. Yorkshire Terrier
   Golden Retriever
2. Beagle
   St. Bernard

The first therapy dog was a Yorkshire Terrier. Found in a World War II war zone, the small terrier was trained to calm soldiers. The dog was named Corporal "Smoky" Wynne.

1. Shih Tzu
   Scottish Terrier
2. Miniature Schnauzer
   Cairn Terrier

The canine actor for Toto was a Cairn Terrier. Her name was Terry. Terry was most known for her role in "The Wizard of Oz," but she appeared in a total of sixteen movies, including "Bright Eyes."

1. Jack Russell Terrier
   Beagle
2. Russell Terrier
   Miniature Bull Terrier

Snoopy was a Beagle. He first appeared in a comic strip in the 1950s. Charles Schulz, the creator of "Peanuts," modeled Snoopy's character after one of his own childhood dogs, named Spike.

1. American Hairless Terrier
   Chinese Crested
2. Mexican Hairless Dog
   Peruvian Inca Orchid

The American Hairless Terrier is known for its dental health among hairless dogs. The gene that causes the bald appearance in canines is also needed for healthy teeth formation, leading to dental issues in hairless canines. The American Hairless Terrier is the exception.

1. Staffordshire Terrier
   Peruvian Inca Orchid
2. Xoloitzcuintli
   He was just a mutt.

Named after the Aztec God Xolotl, who represented death, Dante was a Xoloitzcuintli. Xolos are known for their hairless appearance. Unlike Dante, the breed is said to be intelligent.

1. Akita
   Shiba Inu
2. Tosa
   Hokkaido Dog

The Tosa is the largest Japanese dog breed. It's also known as the Japanese Mastiff and Japanese Fighting Dog. The Tosa is the only breed in Japan that can still be used legally in dogfighting.

1. Norwegian Lundehund
   Eurasier
2. Estrela Mountain Dog
   Chinese Crested

The Norwegian Lundehund has six toes on each paw. This makes it unique among other breeds, since it's the only breed to have six toes. It was first used to hunt puffins and locate their eggs.

1. Teddy Roosevelt Terrier
   Dandie Dinmont Terrier
2. Saluki
   Chow Chow

The Dandie Dinmont Terrier got its name from Sir Walter Scott's novel, Guy Mannering (also known as The Astrologer). This is the only dog breed named after someone who didn't exist.

1. Australia
   New Zealand
2. Switzerland
   United States

While its name suggests that it came from the "Land Down Under," the Australian Shepherd is an American dog breed. Their ancestors came from the Pyrenees Mountains.