The Map of Life, or MOL, tracks the biodiversity around the world. Researchers are using the map to predict where an unknown species may be hiding. The data model shows that amphibians and reptiles are the most undiscovered animals. This is because they are often smaller in size and don’t travel far, making them hard to find. The MOL can be used as a conservation tool. Researchers plan to prioritize areas that aren’t well explored but may be affected by climate change.