Who is the most muscular dog in world?

It's impossible to definitively say which dog is the "most muscular" in the world because there's no official competition or measurement system for this. However, some breeds are known for their muscular builds, and individual dogs within those breeds might be considered very muscular:

Breeds known for their muscularity:

* Bullmastiff: These dogs have a very stocky build with thick necks and powerful legs.

* American Bulldog: These dogs are known for their muscular bodies and strong jaws.

* Boxer: Boxers are known for their athleticism and powerful build.

* Dogo Argentino: This breed is known for its massive size and muscular frame.

* Cane Corso: This Italian breed is known for its strength and powerful build.

* German Shepherd: These dogs are known for their athleticism and muscularity.

Individual dogs:

* Hulk: A massive American Bulldog known for his size and muscularity.

* Thor: Another American Bulldog known for his impressive size and strength.

Important Note: While muscularity is a trait in some dog breeds, it's important to remember that healthy and balanced development is key. Overly muscular dogs can be prone to joint issues and other health problems.

Ultimately, it's more important to focus on a dog's overall health and well-being than just their muscularity.