A small team of researchers with members from the University of Toulouse, the University of Lausanne and the University of Padova has found evidence that honeybees have a mental number line in their tiny brains. In their paper published in Proceedings of the National Academy of Sciences, the group describes experiments they conducted with captive honeybees.
source https://www.lifetechnology.com/blogs/life-technology-science-news/honeybees-use-a-mental-number-line-to-keep-track-of-things
