Honeybees are surprisingly great at math

Zero is an extremely hard concept to understand. Quantities of things--whether they are bundles of fruit, communities of people, or blocks of wood for construction--are vital to our livelihood. But nothing, as far as the brain is concerned, is far different than something. Humans have had a hard time coming to terms with this concept. But our ability to grasp zero as a distinct numerical value is a vital part of modern mathematics, engineering, and technology.