What breed of dog has the largest brain?

It's not about the absolute size of the brain but about the brain-to-body mass ratio that indicates intelligence in dogs. While larger dogs tend to have larger brains overall, smaller breeds often have a higher brain-to-body mass ratio, suggesting a greater proportion of brain tissue relative to their body size.

Some breeds often cited for their intelligence and potentially higher brain-to-body mass ratio include:

* Poodles: Known for their high trainability and problem-solving skills.

* Border Collies: Renowned for their herding abilities and intelligence.

* German Shepherds: Intelligent and trainable working dogs.

* Golden Retrievers: Highly intelligent and eager to please.

* Doberman Pinschers: Intelligent and athletic dogs.

However, it's important to remember that intelligence is complex and cannot be solely measured by brain size. Factors like genetics, environmental stimulation, and training all play a significant role in a dog's cognitive abilities.