Catalogue of Life is a collaboration and data resource with the aim for a consistent and up-to-date listing of all the world’s known species. It’s been in existence for over 27 years. At present 2,1 million described species are covered. A global community of more than 500 taxonomic experts is involved. The Catalogue of Life infrastructure, ChecklistBank, contains close to 50k openly accessible taxonomic datasets. It also offers tooling for comparing taxonomic datasets and for building sp...