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Continue to ChatSwapping polar bears for penguins: what Christmas is like on the South Pole http://isciencemag.co.uk/features/swapping-polar-bears-for-penguins-what-christmas-is-like-on-the-south-pole/
Swapping polar bears for penguins: what Christmas is like on the South Pole http://isciencemag.co.uk/features/swapping-polar-bears-for-penguins-what-christmas-is-like-on-the-south-pole/