Extras

    Video thumbnail: Nature Wolves Hunting Buffalo

    Nature

    Wolves Hunting Buffalo

    Breathtaking footage of a wolf pack going after a herd of bison.

    Wolves Hunting Buffalo

    Video thumbnail: Nature Cold Warriors: Wolves and Buffalo Preview

    Nature

    Cold Warriors: Wolves and Buffalo Preview

    In Canada's vast plains, the biggest buffalo and wolves in the world do battle.

    Cold Warriors: Wolves and Buffalo Preview