It has been known that pigeons can count, but a recent experiment showed they can perform a higher math task that had been demonstrated only in primates: ranking groups of items from fewest to most.
By JAMES GORMAN, New York Times
Thu, 12/22/2011 - 12:12pm
It has been known that pigeons can count, but a recent experiment showed they can perform a higher math task that had been demonstrated only in primates: ranking groups of items from fewest to most.