SAKABAL, Niger – In a part of the world where the worth of a man is measured by his animals, Tuareg nomad Soumaila Wantala has come to this market to do the unthinkable: Sell his last camel.

He crouches in the shade of a thorn tree as traders haggle over the 4-year-old male animal, Yedi. When the sale is complete, Yedi rears his enormous neck and lets out a cry, like the deep, subterranean call of a whale. It takes three men to drag the camel out of the arena, as if he understands the fate that has just befallen his master.

In markets all over Niger, hungry people are selling hungry animals for half their normal value, giving up on the milk and money of tomorrow so that their children can eat today. Their plight is a sign of how far the economy of the desert has broken down, leaving its people unable to feed themselves in drought after drought.