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Supporting Content

• Snow spa monkeys — Winter

  Duration: 1:31

• Penguin huddle — Winter

  Duration: 1:59

• Black grouse fight — Winter

  Duration: 2:46

• A brave grizzly mum — Autumn

  Duration: 2:49
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• The stars of Winter: Earth's Seasonal Secrets — Winter

• The stars of Autumn: Earth's Seasonal Secrets — Autumn

• The stars of Summer: Earth's Seasonal Secrets — Summer