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S1, E4: The annual search for greener pastures means life must go on the march. Desperate herds, flocks, mobs and schools wage global searches for sustenance, while hungry predators lie in wait.

Documentary · Nov 14, 2010 · 45 min

Information

Released
2010
Run Time
45 min
Region of Origin
United States
© (c) 2010 NGHT, LLC.

Languages

Original Audio
English, English (United Kingdom)
Audio
English (⁨Dolby 5.1⁩), and 8 more...
Subtitles
Chinese, Simplified , and 18 more...