Numerical ordering of zero in honey bees

Area of Science:

• Animal cognition
• Insect behavior
• Numerical cognition

Background:

• Vertebrates exhibit complex numerical abilities, including understanding zero.
• Insect cognitive capabilities regarding abstract numerical concepts are largely unexplored.

Purpose of the Study:

• To investigate if honey bees can learn and apply numerical concepts.
• To determine if honey bees understand the concept of zero.

Main Methods:

• Honey bees were trained to discriminate between numerical quantities using visual stimuli.
• Training involved concepts of 'greater than' or 'less than' with one to six features.
• Performance was assessed by their ability to extrapolate these concepts.

Main Results:

• Honey bees successfully learned the 'less than' concept.
• Bees demonstrated an ability to order zero numerosity, extending the numerical continuum.
• This numerical understanding parallels that of vertebrates like parrots and primates.

Conclusions:

• Honey bees possess a more sophisticated understanding of numerical concepts than previously thought.
• Insects may share fundamental numerical cognition mechanisms with vertebrates.
• This research opens new avenues for studying insect intelligence and comparative cognition.