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Elizabeth Brannon and postdoc Rosa Rugani of the School of Arts and Sciences discussed new research about honeybees’ ability to add and subtract numbers. Brannon said bees use ratios, rather than exact digits, to understand quantities. “When animals are comparing two numerical values, they’re much better if they differ by a large ratio than if they differ by a very small ratio,” she said.

https://www.csmonitor.com/Science/2019/0207/Have-you-heard-the-buzz-Honeybees-can-count Christian Science Monitor