In the ongoing question of “what makes human’s special?”, biologist have recently demonstrated that honey bees have the ability to conceptualize zero.
The bees in the study were trained, one group to fly towards displays with higher quantities of black shapes, and one towards cards with fewer shapes. Once the second group was trained to recognize “lower” number of black spots, they introduced blank cards. The bees were then able to recognize that the absence of black spots is less than low number of spots.
This phenomenon is referred to as the “numerical-distance-effect” and has been observed in children and primates. So bees have at least the conceptual ability of a smll child.
Good job bees! Read more about it here.