Genetic variation is observable outcome of unobservable past evolutionary processes, such as mutation, genetic drift, recombination, gene flow and natural selection. Recent developments in genomic technologies now allow us to retrieve genome-wide genetic variation data in population scale. Our laboratory focuses on reconstructing actions of the evolutionary processes in fine resolution by producing and analyzing genome-wide patterns of genetic variation. The first research topic of our lab is to reconstruct world-wide human migration and admixture for the past 10,000 years or so by combining genomes of ancient and present-day individuals. The second topic is to understand the role of natural selection in shaping complex adaptive phenotypes on top of neutral demographic history. Last, we aim at extending our population genomic approach to non-human non-model-organism species. Our lab heavily utilizes high-throughput genomics technologies for data production (e.g. next generation sequencing and microarrays) and high performance computing clusters on large-scale data processing and analysis.