“Two, four, six, eight; bog in, don’t wait”. As children, we learn numbers can either be even or odd. And there are many ways to categorize numbers as even or odd. We may memorize the rule that ...

As children, we learn numbers can either be even or odd. And there are many ways to categorise numbers as even or odd. We may memorise the rule that numbers ending in one, three, five, seven, or nine ...

Honey bees know nothing. Literally. Honey bees have previously demonstrated to scientists they understand the concept of zero by selecting dotted paper based on a reward of sweetened water. Eventually ...