The Shar Tzu is a hybrid breed, a mix between a Shar Pei and a Shih Tzu. It typically has a compact and sturdy build, with distinctive wrinkled skin and a short, plush coat. Known for its affectionate nature, this breed is sociable and often forms strong bonds with humans. They are adaptable to various living environments but thrive in family settings. The Shar Tzu is generally friendly and intelligent, making it a great companion animal.

The Shar Tzu is not a recognized wild animal species but rather a designer dog breed, a cross between a Shar Pei and a Shih Tzu. As a domesticated breed, it does not have a native region in the wild.

As a domesticated dog, the Shar Tzu typically inhabits human environments, such as homes and gardens. They can adapt to various living conditions but thrive best in environments where they receive adequate care, exercise, and companionship.

Being a companion animal, the ecological niche of a Shar Tzu is primarily within human society, serving as a pet. They do not play a specific role in natural ecosystems but rather in human social structures, providing companionship and sometimes serving as therapy animals.