Diversity and evolution of African Grass Rats (Muridae: Arvicanthis)—From radiation in East Africa to repeated colonization of northwestern and southeastern savannas
important groups of rodents in sub‐Saharan Africa. They are abundant in a variety of open habitats, they are major agricultural pests, and they became a popular model in physiological research because of their diurnal activity. Despite this importance, information about their taxonomy and distribution is unsatisfactory, especially in eastern Africa.