The Ratshi Terrier is a small mixed-breed dog resulting from the cross between the Rat Terrier and the Shih Tzu. Known for its playful and energetic nature, this breed typically features a compact body with a soft, sometimes wiry coat, and expressive eyes. They are sociable, adaptable, and often thrive in family environments.

The Ratshi Terrier is not a recognized purebred species but rather a hybrid dog breed resulting from the crossbreeding of a Rat Terrier and a Shih Tzu. As a designer breed, it does not have a native region in the same way wild animal species do. However, the parent breeds originate from different regions: the Rat Terrier has roots in the United States, while the Shih Tzu originated in China.

As a domesticated dog breed, the Ratshi Terrier adapts well to a variety of living conditions typically found in human environments. They can thrive in urban, suburban, or rural settings as long as they receive adequate exercise and care. They prefer environments where they can interact with humans and have access to indoor shelter.

As a domestic pet, the Ratshi Terrier's ecological niche is primarily within human households, where they serve as companions. They are adaptable to various living spaces but require regular interaction and stimulation to maintain their health and well-being.