Fabled stories of Aesop tell
Wisdom ancient Greeks knew well.
Show humble acts teach great truths
With animals foolish or astute.
From half-full pitchers crows can drink.
They raise the level with rocks that sink
Now researchers at Aukland U,
Are crows that smart? They wonder, too.
Float snacks inside a narrow tube,
Give floating blocks and sinking cubes.
Crows figure out, to get their treat,
Drop sinkers in, just like the Greeks.
Necessity, mother of invention,
Gives 5-year olds some competition.