Thousands of years ago, when humans were still nomads and the Ice Age winds howled across the land, a pact was silently made between two species. Wolves, drawn to the scraps of human camps, edged ...

The crude view of evolution is often stark: a struggle for life in the wilderness, dominated by the strong, the cunning, the fierce, or the exquisitely camouflaged. And yet, who thrives today? Dogs.