modern science confirms aesop's fable
"An undated photo released by The University of Cambridge shows a rook, a member of the crow family, as it drops stones into a tube to raise the water level and bring a worm into reach,"
via
"An undated photo released by The University of Cambridge shows a rook, a member of the crow family, as it drops stones into a tube to raise the water level and bring a worm into reach,"
via
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