Fecal transplants a fountain of youth, supernova on repeat, bee dancing reveals foraging habits, tracking narwhal by their ‘fluke-prints,’ and how forgetting benefits the mind

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Manage episode 304702654 series 2434985
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A fecal transplant from young mice is like a ‘fountain of youth’ for old mice; How a trick of the light helps scientists spot the same supernova again and again; Dancing bees reveal that UK cities are packed with more accessible food than the countryside; Narwhals leave infrared ‘fluke-prints’ in the ocean that can be seen with aerial cameras; A memory researcher explores the science — and value — of forgetting.

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