I study evolution through phylogenetic approaches. Darwin's metaphorical tree of life has captivated my interest since my early years as a student at the University of Buenos Aires. I use trees to explore the relationship between different species or to use them as routes to map character evolution along lineages. Phylogenetic trees enabled me the inference of rodents evolutionary dispersal in space and time, studying the origins and diversification of duplicated genes, discuss species delimitation, or perform virus typing. My research has been mainly centered on mammalian evolution, especially in rodents, and particularly in South American subterranean tuco-tucos (genus Ctenomys), but during the past years I have also been working in molecular evolution of proteins, bats phylogenies, rabies, and more recently, in coronavirus.