Extras

    Video thumbnail: Nature Radioactive Wolves - Preview

    Nature

    Radioactive Wolves - Preview

    Airs Wednesday, August 7, 2013 at 8:00 p.m. ET/PT. Check your local listings.

    Radioactive Wolves - Preview

    Video thumbnail: Nature A Place for Wild Horses

    Nature

    A Place for Wild Horses

    Przewalski's horses have been released in the zone, to restore the land's biodiversity.

    A Place for Wild Horses

    Video thumbnail: Nature Radioactive Wolves

    Nature

    Radioactive Wolves

    What happens to nature after a nuclear accident?

    Radioactive Wolves

    Video thumbnail: Nature Bison Take on the Wolves

    Nature

    Bison Take on the Wolves

    A family of bison ward off a pack of wolves as they begin to feed on a fallen calf.

    Bison Take on the Wolves

    Video thumbnail: Nature Unintentional Green City

    Nature

    Unintentional Green City

    A once thriving metropolis is now green, in an unnerving and unintentional way.

    Unintentional Green City

    Video thumbnail: Nature Radioactive Wolf Pups

    Nature

    Radioactive Wolf Pups

    Scientists compare wolf pups living outside Chernobyl with those living inside the zone.

    Radioactive Wolf Pups