'Crows can distinguish between symbols'

'Crows can distinguish between symbols'

In a series of experiments, a team at the Utsunomiya University in Japan found the birds successfully selected containers containing the highest quantity of food via numbers marked on the lid.

According to Professor Shoei Sugita, who led the study, the findings suggested that crows possess the same numerical cognition ability as humans, the Daily Telegraph reported. Eight jungle crows took part in the experiments, during which two containers marked with “two” and “five” numerical symbols on the lid were placed in a cage.

Food was contained only in the container marked “five” but the crows were able to pick the correct box with 70 per cent success rate. In further experiments, non-numerical symbols of a variety shapes and sizes as well as additional numbers between two and eight were also used to gauge the crows’ skills.

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