Taxonomies are core to our everyday working. We constantly categorize entities to aid our understanding and navigation of the world around us. In the most basic of cases, we may categorize animals into dangerous or non-dangerous, pets or pests and people into friends and strangers. Since time began, our ancestors have used taxonomy to stay away from things carrying the potential to cause harm, and it is shown that we have the ability to classify complex entities even as children through evolved parts of the human brain. This paper explores the origin of taxonomy and how it carries immense importance in our world, its importance in biology and how it is used in visualization also. This is a short paper reviewing taxonomy in biology and visualization. It is not perfect, but it is a comprehensive review.