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