字幕列表 影片播放
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As they detect the waters of home, they converge into the narrow fjords, which actors underwater corridors.
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But other creatures also know these corridors.
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Killer whales.
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They eat a lot of salmon, and so do steller sea lions.
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Salmon sharks are here to specifically to feed on salmon, but that is one predator that they can never see coming, bold headed.
