When a squirrel has cached a nut for a rainy day, will it be able to find it - or does it rely on luck? Fergus Keeling and Jessica Holm unearth some natural facts.
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When a squirrel has cached a nut for a rainy day, will it be able to find it - or does it rely on luck? Fergus Keeling and Jessica Holm unearth some natural facts.