What is the biggest dog in the world? Meet the world’s largest pooch.

What is the biggest dog in the world? Meet the world’s largest pooch.

Looking at a Great Dane next to a Chihuahua is quite the sight. While Great Danes often stand around 32 inches tall, a Chihuahua’s average height is under 9 inches. 

Geneticists are trying to find an explanation for this. In this age of modern domestication, why are the largest dog breeds up to 40 times bigger than the smallest? The answer is still unclear, but scientists found a growth hormone variant that traces back to ancient wolves.

So, what are the biggest dogs across the canine world? Here are the largest dogs and breeds to know. 

Zeus, the tallest dog living, with his owner Brittany Davis.

What is the biggest dog in the world?

The biggest dog in the world by height was Zeus, a Great Dane from Otsego, Michigan. According to the Guinness World Records, Zeus was 44 inches tall and 7 feet, 4 inches on his hind legs

Despite his intimidating height, Zeus’ owner Kevin Doorlag said he regularly visited schools and hospitals as a therapy dog. Zeus died at age 5 in September 2014.