2 Season
8 Episode
北极解密 - Season 2 Episode 2 第 2 集
Every year, thousands of salmon make their way upstream along the nearly 2000-mile-long mighty Yukon River, desperate to reach spawning beds. Eagerly checking their progress is a host of hungry predators, from grizzly bears to bald eagles--all desperate to stock up on protein before the long winter months ahead.
- Year: 2017
- Country:
- Genre: Documentary
- Studio: Smithsonian Channel
- Keyword:
- Director:
- Cast:
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