The human egg is a precious resource, exchanged in markets open, gray or black. To tell its story, we follow a teenage girl in India, lured into selling her eggs; a model in Argentina whose genetic makeup is prized; a mother in Greece, told by police that her eggs were stolen; and two “egg girls” from Taiwan who have put themselves at risk to earn money in the US. By Natalie Obiko Pearson, Jessica Brice, Susan Berfield, Vernon Silver, Kanoko Matsuyama, Cindy Wang, Sinduja Rangarajan and Fani Nikiforaki