Hutu reify the biological distinctions, generating a taller elite and a shorter underclass, but with little relation to the gene pools that had existed a few centuries ago. The social categories are thus real, but there is little if any detectable genetic differentiation between Hutu and Tutsi. Tishkoff et al. (2009) found their mixed Hutu and Tutsi samples from Rwanda to be predominately of Bantu origin, with minor gene flow from Afro-Asiatic communities (17.7% Afro-Asiatic genes found in the mixed Hutu/Tutsi population). Hutus speak Rwanda-Rundi as their native tongue, which is a member of the Bantu subgroup of the Niger–Congo language
Rwandan genocide only one dominated by an opposition party. Opposing the genocide, Habyalimana was able to keep relative calm in the province, until he was deposed by the extremist Sylvain Ndikumana. Finding the population of Butare resistant to murdering their fellow citizens, the government flew in militia from Kigali by helicopter, and they readily killed the Tutsi. Most of the victims were killed in their own villages or in towns, often by their neighbors and fellow villagers. The militia typically murdered victims with machetes, although some army units used rifles. The Hutu gangs searched out victims hiding in churches and school buildings,