Since they are pets, they live in a variety of human-created environments, such as:
* Homes: This is their primary habitat, where they have food, water, shelter, and human companionship.
* Yards: Chihuahuas often enjoy spending time outdoors in yards, but they need protection from the elements and other dangers.
* Apartments: Many Chihuahuas live in apartments, especially in urban areas.
* Travel: They may also travel with their owners in cars, on airplanes, or other forms of transportation.
It's important to remember that Chihuahuas are not suited for living outdoors without human care. They need shelter, food, water, and social interaction with their owners.