转自思路HD，该片发布日期是今年7月29日(来自未来？)，片长87分钟，包括40分钟正片和47分钟花絮，目前介绍不多，好不容易搜索到如下内容，英文的就凑合看吧：

http://www.blu-ray.com/movies/movies.php?id=729


Product Status : NEW RELEASE
Release Date : 29/07/2008
Type : Documentary 纪录片
Video Format :
- Anamorphic Widescreen 16 : 9

Audio Format :
- English 5.1 Dolby Digital
- French 5.1 Dolby Digital
- German 5.1 Dolby Digital
- Japanese 5.1 Dolby Digital
- Korean 5.1 Dolby Digital
- Mandarin 5.1 Dolby Digital
- Spanish 5.1 Dolby Digital

Subtitles :
- English
- Mandarin

Special Features
Subtitles : English, Mandarin, Swedish
Video Format : 1920 x 1080p Blu-ray, HD Anamorphic Widescreen 16 : 9, 25GB Single Layer

- Making Of Wolves
- ThefSurvival Of ThefYellowstone Wolves

Take a journey into the world of Wolves with intimate and rarely seen footage of one of North America\'s greatest predators: Canis Lupis. A moving soundtrack of Native American music adds a deeply poignant element to the film and propels viewers on an inner quest of their own during this remarkable story of one of the world\'s most tenacious species and our closest fellow predator. Filmed in locations including Yellowstone National Park, Montana, Idaho, Alaska and Quebec, Wolves offers hope and inspiration, a look at the good that people can do when they care enough to correct some of the mistakes that threaten the health of the natural world.