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My small dog acts like a giant. Why do little dogs have big personalities?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 7 years and 5 months old

Why does my dog Toby act giant but he is small?

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on April 7th, 2018

Dogs do not think in terms of body size but in terms of attitude and assertiveness. This is why a little chihuahua acts like the big honcho and can sometimes drive away a bigger dog, unless the bigger dog has just as big or a bigger ego.

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