They’ll need playtime and exercise to stay happy and healthy. Image credits: stella.and.bambi_thechichis Teacup Chihuahuas are the world’s tiniest dogs, but they have HUGE personalities!

Chihuahuas are small, anyway. When you try to make them even smaller, you force all the dog’s internal structure into a smaller space. Teacup Chihuahuas often have brain issues, and many don’t ...