However, there are a few reasons why a Great Dane might not bark at strangers:
* Temperament: Some Great Danes are naturally calmer and more laid-back than others. They might not feel the need to bark as a protective response.
* Socialization: If a Great Dane is well-socialized from a young age, they are more likely to be comfortable around strangers and less likely to bark.
* Training: If you've trained your Great Dane not to bark at strangers, they may have learned to suppress this behavior.
* Individual personality: Just like humans, dogs have individual personalities. Some dogs are naturally more vocal than others.
It's important to note that a lack of barking doesn't necessarily mean there's something wrong with your Great Dane. Some dogs are simply less vocal than others. If you're concerned about your dog's behavior, it's always best to consult with a veterinarian or a certified dog trainer.