As one of the world’s megadiverse countries, Brazil has great importance for global conservation. Researchers relied on data from a number of sources, including GBIF.org, to map the vertebrate diversity of Brazil. The study attributes the highest values to the Amazon and the Atlantic Forest and finds that these regions are home to most threatened bird and mammal species. Endemics peak in the Atlantic Forest, and the authors recommend expanding protection and restoration efforts in the region. They also highlight a lack of occurrence data in certain regions of Brazil, urging wider support of initiatives that improve the collection and sharing of free and open biodiversity data.