Evolution is the study of how the genotypic and phenotypic composition of populations changes through time. This course covers the foundation of evolutionary biology and the mechanisms that have shaped organisms since life began. We will discuss: how the evolutionary synthesis came to be, the origin of variation, the allelic composition of a population (and how different processes, including natural selection) modify this composition, and adaptation. This approaches lead to considering of how we can study evolution using phylogenetic methods and the mechanisms of speciation. We will finally explore the fascination topic of human evolution.