#10 Do Chihuahuas bark a lot?
Most Chihuahuas do tend to bark a lot and bark quite loudly, and luckily this isn't a sign that something is wrong. If you own a Chihuahua and are worried that they're barking too much or want to train them to become less yappy, don't fear, certain training methods can help with excessive barking.
#11 Are Chihuahua dogs intelligent?
There is a study by neuropsychologist and professor of psychology, Stanley Cohen, that says Chihuahuas are classified as fair or below average for working/obedience dog intelligence. Chihuahuas are actually ranked 125th out of 138 breeds tested.
#12 What are Chihuahuas weaknesses?
As with many purebred pups, Chihuahuas are prone to some breed-specific health issues. These can include epilepsy, mitral valve disease, and patella luxation. If you are getting your puppy from a breeder, they should be testing the health of both parents and the puppies as appropriate.