Cairn Terriers are small, sturdy, and alert dogs originally bred in Scotland. Known for their weather-resistant coat, Cairn Terriers are fearless and inquisitive, with a strong prey drive. They are highly energetic, intelligent, and excel in various dog sports. These terriers have a distinctive scruffy appearance and expressive eyes.

The Cairn Terrier is not a wild animal species but a domesticated dog breed originally from the Scottish Highlands, particularly the Isle of Skye. It is one of the oldest terrier breeds originating from Scotland.

As a domesticated breed, Cairn Terriers are adaptable to various living conditions provided by their human owners. They historically thrived in rural environments with a cool, temperate climate typical of the Scottish Highlands.

Cairn Terriers were originally bred to hunt and control vermin like rats and foxes, making them well-suited to farm life where they could use their keen senses and digging skills. Today, they are primarily companion animals and can adapt to urban, suburban, and rural settings.