Rasmus Nielsen is an evolutionary biologist and geneticist whose research investigates human evolution, population genetics, and statistical genomics. He is best known for developing computational methods to detect natural selection in genomes and for his discoveries on human adaptation to high-altitude environments and ancient interbreeding with Neanderthals and Denisovans. Nielsen’s research integrates evolutionary theory, bioinformatics, and molecular biology to uncover the genetic basis of adaptation and diversity across species. His work has transformed our understanding of human evolution and evolutionary genomics. He is Professor of Integrative Biology and Statistics at UC Berkeley and a member of the Center for Theoretical Evolutionary Genomics. He has published more than 350 peer reviewed publications including many in Nature, Science, and Cell. Nielsen is a member of the National Academy of Sciences and the Danish Royal Academy of Sciences. At Berkeley, he teaches Human Biological Variation and mentors students in computational biology and evolutionary research.