The many different breeds of dogs mean there’s almost certainly a perfect dog for everyone. Those interested in smaller species can find a friend in breeds like Pomeranians or pugs, while those looking for larger canines might fall in love with Great Danes or Bernese Mountain Dogs, says the American Kennel Club.

According to Pet Keen, 195 and 500 dog breeds are based on other organizations’ recognitions and experimental species. 

With all the possibilities, what is the smallest individual dog in the world?

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What is the smallest dog in the world?

The world’s smallest individual dog, recognized by Guinness World Records, is Milly, a 1-pound Chihuahua born in 2011. Measuring 9.65 centimeters, or 3.8 inches tall, the tiny dog sleeps in a crib and only eats “food cooked by humans.”

What is the smallest dog breed in the world?

The smallest dog breed in the world is a Chihuahua, ranging from 15 to 23 centimeters, or 5.9 to 9 inches in height, according to Purina, a pet food and care company. Chihuahuas weigh between four to six pounds and can have shorter or longer fur, depending on the dog. 

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The AKC explains Chihuahuas are “sassy pets” with “huge personalities” that enjoy quality time with their owners yet can be on the small side to be around rough children.

Purina lists toy poodles as the second smallest dog, not exceeding 28 centimeters or 11 inches in height. AZ Animals notes toy poodles often weigh between six and 10 pounds and can live up to 18 years. 

The best of the best: World’s Ugliest Dog Contest: See the 2022 winners, most unique-looking dogs

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Milly, the Chihuahua that's Just Under 4 Inches Tall 4

What is the most giant dog in the world?

The English Mastiff is the most giant dog breed in the world, says Purina. A height of 27 to 35 inches and a weight of 200 to 230 pounds makes them great security, police, military, and guard dogs. 

Taking second place is the Irish Wolfhound. According to Purina, these dogs can grow up to 32 inches but are big teddy bears on the inside.

What is the most significant individual dog in the world?

The tallest individual dog in the world is Zeus the Great Dane.  He stands at three feet, slightly over five inches tall, and is a Guinness World Record holder. Zeus reaches seven and four inches tall when standing on his hind legs.

What else is there to know about Zeus?: World’s tallest living dog, a Great Dane named Zeus, breaks the Guinness World record.

What is the oldest dog in the world?

The oldest dog in the world was an Australian cattle dog named Bluey, who lived to the age of 29 years and five months. Bluey died in 1939, AZ Animals says, and she lived over double the average lifespan of her breed.

The oldest living dog as of the summer of 2022 is a 22-year-old Toy Fox Terrier named Pebbles. Made a Guinness World Record holder in 2022, Pebbles reaches her 23rd birthday on March 28, 2023.

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