Amazing Bee Fact

Honeybees join humans as the only known animals that can tell the difference between odd and even numbers. 

Results of recent studies showed the miniature brains of honeybees were able to understand the concepts of odd and even.

So a large and complex human brain consisting of 86 billion neurons, and a miniature insect brain with about 960,000 neurons, could both categorize numbers by parity. (Scarlett R. Howard et al, Numerosity Categorization by Parity in an Insect and Simple Neural Network, Frontiers in Ecology and Evolution (2022).