1/3. Winter. Following wildlife inhabiting the famous American national park, a lost world of deep forests, vast plains and bubbling geysers. The first episode focuses on various species struggling to survive the winter. First shown on BBC2
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1/3. Winter. Following wildlife inhabiting the famous American national park, a lost world of deep forests, vast plains and bubbling geysers. The first episode focuses on various species struggling to survive the winter. First shown on BBC2