Welcome to the Leaché Lab at the University of Washington in Seattle, Washington. We are a group of evolutionary biologists in the Department of Biology & Burke Museum studying the diversity and systematics of reptiles and amphibians. Our collections-based research takes us to exciting places, including Western North America Deserts, South America, Mexico & West Africa. We are also actively exploring creative new ways to apply genomic data into our studies of natural populations. Major themes of our research include phylogenetics, phylogeography, and species delimitation.