Reasoning that resembles that of a child 7 to 10 years
However, the last test has found the limits of the reasoning of these corvids. True, he was quite Machiavellian. Two containers, one narrow and one wide, stood before the bird, the smallest containing the worm. But the stones were too large, could only be made in the large. However, in one case, a U-tube, hidden, both dovetailed. Stones dropped into the large container so brought up the water in the small. To complicate matters, the researchers made a similar device without connecting the two were differentiated by a label color , red or blue depending on the presence or absence of the U-tube with red, worm recovery possible but not blue. Even better, the same experiment was repeated with a transparent support that showed the connection pipe. The birds could they understand what mechanism interconnected? Answer: no. With one named Kitty, who successfully passed other tests, no birds really understood the importance of putting stones where there is no worm and this only in the device to red label. Authors even they are unsure of the reason for the performance of Kitty.
And by the way, children? Between 4 and 6 years old, they put stones in either tube, either, and do not seem to imagine the existence of a hidden connection. For future years, when it comes to taking into account the volume of water, they are struggling too. According to the authors, the performance of corvids match for the best, about those children 7 to 10 years. However, they point out, there is no evidence that mental mechanisms involved are the same. The experiments will resume soon, now that the breeding season has gone to the birds. The team wants to compare its performance with those of common sparrows in America.
However, the last test has found the limits of the reasoning of these corvids. True, he was quite Machiavellian. Two containers, one narrow and one wide, stood before the bird, the smallest containing the worm. But the stones were too large, could only be made in the large. However, in one case, a U-tube, hidden, both dovetailed. Stones dropped into the large container so brought up the water in the small. To complicate matters, the researchers made a similar device without connecting the two were differentiated by a label color , red or blue depending on the presence or absence of the U-tube with red, worm recovery possible but not blue. Even better, the same experiment was repeated with a transparent support that showed the connection pipe. The birds could they understand what mechanism interconnected? Answer: no. With one named Kitty, who successfully passed other tests, no birds really understood the importance of putting stones where there is no worm and this only in the device to red label. Authors even they are unsure of the reason for the performance of Kitty.
And by the way, children? Between 4 and 6 years old, they put stones in either tube, either, and do not seem to imagine the existence of a hidden connection. For future years, when it comes to taking into account the volume of water, they are struggling too. According to the authors, the performance of corvids match for the best, about those children 7 to 10 years. However, they point out, there is no evidence that mental mechanisms involved are the same. The experiments will resume soon, now that the breeding season has gone to the birds. The team wants to compare its performance with those of common sparrows in America.