About the Breed: A Chihuahua is a small breed of dog that originated in Mexico. They are the smallest breed of dog and are known for their energetic and lively personalities. They come in a variety of colors and coat types and are often kept as lap dogs or companion animals. They are also known for their loyalty and affection towards their owners. Temperament: Chihuahuas are known for their lively and energetic personalities. They are also known for being bold, confident and sometimes even sassy. They are highly intelligent, and when trained well, they can be quite obedient and well-behaved. They are also known for being fiercely loyal and affectionate towards their owners. They can be quite protective of their owners and territory and may be suspicious of strangers. They are also known to be very vocal and may bark excessively if they feel threatened or excited. They are generally good with children and other pets if they are socialized properly.