Book excerpt: As ruggedly beautiful as the circumpolar north in which it evolved, the Canadian Inuit Dog has been a vital partner to the Arctic's indigenous people for millennia, helping them travel, navigate, hunt and survive in their frozen world. Deeply researched and passionately written, this deft and respectful exploration of this ancient landrace's history, genetics, form and function also chronicles the Inuit Dog's clashes with modernity, which threaten its existence more ominously than any Arctic blizzard.