15 Reliable Dog Breeds That Can Guard Your Home

14. Chihuahuas Pack a Punch Despite Their Size

Think Chihuahuas are just "purse dogs"? Think again! These little guys have the heart of giant. They might be tiny, but they've got big personalities that can surprise you. They're not shy about standing up for themselves, and their boldness is sure to make you smile.

Despite their small size, Chihuahuas are smart as a whip and know how to navigate life. They love to make their families happy and are quick learners during training. They're a bit reserved with new faces, though, and might let out a bark or two when someone new comes around.