Miscellanea

Recreation or fun is the expenditure of time in a manner designed for therapeutic refreshment of one's body or mind

Food is any substance, usually composed of carbohydrates, fats, proteins and water, which can be eaten or drunk by an animal or human for nutrition or pleasure

Military is an organization authorized by its nation to use force, usually including use of weapons, in defending its country (or attacking other countries) by combating actual or perceived threats

Sport is an activity that is governed by a set of rules or customs and often engaged in competitively.

Technology is a broad concept that deals with an animal species' usage and knowledge of tools and crafts, and how it affects an animal species' ability to control and adapt to its environment