By JAMES GORMAN and CHRISTOPHER WHITWORTH from NYT Science
https://ift.tt/2CUbp1h
A test of four different species shows they can accurately assign value to food and tokens, swapping lower value items for higher value food.
Do Parrots Know Economics? Kind Of.
By JAMES GORMAN and CHRISTOPHER WHITWORTH from NYT Science
https://ift.tt/2CUbp1h
A test of four different species shows they can accurately assign value to food and tokens, swapping lower value items for higher value food.
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