> For the complete documentation index, see [llms.txt](https://docs.koins.run/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.koins.run/breeding/introduction.md).

# Introduction

In order to procreate, two koins of the opposite gender (must not be siblings or parents) must perform a dance called Ai. From that ritual, a koinie is born. A koinie is a small koin that inherits the rarity of its mother.