[arista]

[Crows have the reasoning ability of a
seven-year-old child, new research suggests.
Scientists challenged New Caledonian
crows with variations of the Aesop's Fable
The Crow and the Pitcher, in which a
thirsty bird dropped stones into a
jug to raise the level of water.
The six crows in the study worked
out how to obtain floating food
rewards by dropping objects into
water-filled tubes.]

Video:
http://news.sky.com/story/1232467/cl...soning-ability


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