Fortress of the Bears
Season 30 Episode 6 | 50m 9sVideo has Closed Captions
Enter a world shaped by bears, trees, and salmon.
Alaska's Admiralty Island is home to an estimated 1800 brown bears, the largest concentration of bears in the world. Enter a world shaped by bears, trees, and salmon, and the delicate balance of their interconnected lives.
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Kate W. Cassidy Foundation, Kathy...
Fortress of the Bears
Season 30 Episode 6 | 50m 9sVideo has Closed Captions
Alaska's Admiralty Island is home to an estimated 1800 brown bears, the largest concentration of bears in the world. Enter a world shaped by bears, trees, and salmon, and the delicate balance of their interconnected lives.
How to Watch Nature
Nature is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Buy Now
Explore More Ways to Watch
Bring the beauty and wonders of wildlife and natural history into your home with classic NATURE episodes.Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipMore from This Collection
Video has Closed Captions
New technology gives us an intimate look at these magical little birds. (52m 58s)
Video has Closed Captions
Animals congregate in huge colonies partly out of necessity and partly for the security. (52m 55s)
Animal Homes: Location, Location, Location
Video has Closed Captions
Finding a good base of operations is key to successfully raising a family. (52m 55s)
Video has Closed Captions
The first in a three-part series about how animals build their remarkable homes. (52m 55s)
Video has Closed Captions
Ecologist Chris Morgan visits endangered orangutans in Northern Sumatra. (53m 10s)
Video has Closed Captions
Follow a troop of snow monkeys in Japan to see how they prepare to face the world. (52m 58s)
Video has Closed Captions
Parrots and the bittersweet world they share with humans. (53m 10s)
Video has Closed Captions
Learning about one of our closest neighbors: the white-tailed deer. (53m 10s)
Video has Closed Captions
Take a fascinating look at one of our most familiar birds. (1h 42s)
Video has Closed Captions
Love apparently knows no boundaries in the animal kingdom. (53m 20s)
Video has Closed Captions
One man's remarkable experience of raising a group of wild turkey hatchlings to adulthood. (58m 51s)
Bears of the Last Frontier: Arctic Wanderers
The polar bears and arctic grizzlies in the far north of Alaska. (50m 9s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipFortress of the Bears - Preview
Airs Wednesday, June 11, 2014 at 8:00 p.m. ET/PT. Check your local listings. (30s)
Fortress of the Bears filmmakers recap on the time they spent shooting in Alaska. (3m 4s)
The crew gets creative when tides prove a challenge for filming on Admiralty Island. (4m 30s)
It's taken all spring and summer, but salmon finally return to Admiralty Island to spawn. (1m 3s)
Admiralty Island hosts the largest concentration of brown bears in the world. (1m 17s)
Sound Recordist Dave Ruddick explains how he records surround sound in the field. (5m 21s)
Filmmaker Shane Moore on filming techniques he used on Fortress of the Bears. (3m 29s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipMajor support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Kate W. Cassidy Foundation, Kathy...