Posted by: r.m. | August 6, 2009

…not just the primates

From the Independent

“One of Aesop’s fables describing a thirsty crow which was able to drink from a half-full pitcher after raising the water level by adding pebbles may have had a basis in real life. Scientists have found that rooks – a member of the crow family – were able to figure out how to raise the water level in a laboratory container by dropping stones inside to retrieve a tasty worm floating on the surface. … The only other animal shown to be able to perform the same task is the orang-utan, which was able to grasp a floating peanut by spitting water into a tube. Scientists believe the demonstration shows that, in many respects, rooks and crows have comparable intelligence to primates when it comes to the use of tools.”


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