31-year-old Nefissa Hamadou hoeing her field where she plans to grow peanuts. Her 2-year-old son Marou watches his mother work. He is one of 6 siblings, none of whom go to school because they have to help their mother by looking after each other, and collecting food. They only eat once a day, usually corn porridge and wild plant leaves. A drought in southern Niger has affected up to 8 million people.