It is the deserts of the Arctic, a land too cold for any rain to fall except during the rarest intervals, which most wild Piloswine call home. Their fur, probably the warmest and thickest in the entire pokemon world, protects them from temperatures cold enough to make other ice types shiver and flee for warmth; in temperate climates, special care must be used to prevent them from overheating. (A fact which has proven dangerous at times, as many people hunt Piloswine for their fur to get through cold, northern winters. This, however, is of little concern for most Piloswine, who live further north than any significant human settlements.) The hump on their back (which resembles the twin humps of a Camerupt, despite the lack of volcanoes) contains Piloswine's food and water supply, along with ice for many of its attacks.
Unlike Swinub, who can only break through the surface with their strong noses, Piloswine are skilled diggers who use their shovel tusks to tunnel under cavernous walls of ice and snow in search of eggs and smaller burrowing ice-types such as Snover. Their digging is so fast and powerful that icebergs are known to form when a Piloswine inadvertently burrows too far and cracks the polar icecap itself, a fact which was believed to be a sailor's tall tale until recently confirmed by satellite imagery.
In this phase of evolution, wild Piloswine rarely venture even into subarctic zones, although the few who evolve into Mamoswine often migrate south for vegetation. However, isolated populations have been found in Johto caves, leading some to theorize that Piloswine got lost and tunneled not only under polar ice, but through the earth's crust, then searched beneath the ground until they could surface somewhere cold enough for them to survive.