Do Chihuahuas have bigger brains than other dogs?

No, Chihuahuas do not have bigger brains than other dogs in absolute terms; a German Shepherd's brain is physically larger. However, Chihuahuas possess the largest brain-to-body weight ratio of any dog breed, indicating a significant investment in neural processing relative to their small stature. This disproportionate size contributes to their high intelligence ranking, with Chihuahuas often falling within the top 20th percentile for working and obedience intelligence among breeds. To understand more about how this impacts their trainability and personality, explore our full article.