It all began with roadkill. Banff, the crown jewel of the Canadian national parks, is a paradox. Big, primeval wildness and all it embodies — peaks, waterfalls, and glaciers — surround the townsite, the antithesis of wildness with its bustling boutiques and hotels. Highway 1, one of the busiest Canadian roadways, slices through the park via the Bow Valley. It vectors millions of people and their vehicles through this iconic landscape, creating a lethal corridor for wildlife.