This document discusses Les Underhill's contributions to the Animal Demography Unit's Virtual Museum in Nigeria from November 2014. It notes that building distribution maps of species through thousands of photo-place-date records in the museum is crucial to set conservation priorities by understanding biodiversity distributions and how they are changing. It also emphasizes that establishing current baselines is important to measure how development and climate change impact Africa's biodiversity since knowledge of up-to-date distribution patterns is limited.