Bees learn symbols for the numbers 2 and 3

In PTRSB today, bees learned to associate "N" with groups of 2, and "⊥" with groups of  3.

From the discussion: "Our findings show that independent groups of honeybees can learn and apply either a sign-to-numerosity matching task or a numerosity-to-sign matching task and subsequently apply acquired skills to novel stimuli. Interestingly, despite bees demonstrating a direct numerosity and sign association, they were unable to transfer the acquired skill to solve a reverse matching task."

So, remembering watching Romper Room as a child, these bees are clearly Do Bees.