Taxonomy is a science for sustainable development, but it is also a sustainably developed science. It draws on molecular techniques, vast collections, and varied expertise to become the Megascience of biodiversity. It is the science of classification according to a pre-determined system, with the resulting catalog used to provide a conceptual framework for discussion, analysis. It is identify species in the wild, notice the risk of extinction or the arrival of invasive species and follow the changes in biodiversity over time. Taxonomy has been called “the world’s oldest profession”, and naming and classifying our surroundings has likely been taking place as long as mankind has been able to communicate.