British researchers report that Rooks, a member of the crow family, are indeed sharp enough to pile stones in a vase to reach a floating morsel that is out of reach a la "The Crow and the Pitcher."
Aesop's fable not so far fetched
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British researchers report that Rooks, a member of the crow family, are indeed sharp enough to pile stones in a vase to reach a floating morsel that is out of reach a la "The Crow and the Pitcher."