Origins of Hutu, Tutsi and Twa of neighboring people, it was almost non-existent among Rwandan Tutsi. Presence of the sickle cell trait is evidence of survival in the presence of malaria over many centuries, suggesting differing origins. Regional studies of the ability to digest lactose are also supportive. The ability to digest lactose among adults is widespread only among desert-dwelling nomadic groups that have depended upon milk for millennia. Three quarters of the adult Tutsi of Rwanda and Burundi have a high ability to digest lactose, while only 5% of the adults of the neighboring Shi people of eastern Congo can. Among Hutu, one in three
Rape during the Rwandan genocide during the genocide. Although Tutsi women were the main targets, moderate Hutu women were also raped during the genocide. Along with the Hutu moderates, Hutu women who were married to Tutsis and Hutu women who hid Tutsis were targeted. In a testimonial, Maria Louise Niyobuhungiro recalls seeing local people and Hutu men watched her get raped up to five times a day, and that when she was kept under watch by a woman, she received neither sympathy nor help and was also forced to farm between rapes. Tutsi women were also targeted with the intent of destroying their reproductive capabilities.