An even number is a number that can be shared equally into two groups. For example, these 4 cubes can be shared into two equal groups of 2 cubes. So 4 is an even number. An odd number cannot be shared ...

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 ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...