Only elephants should wear ivory. This banner slogan has been around since 1989 when we managed to get the Convention on International Trade in Endangered Species to rein in the global ivory trade that had reduced African elephant numbers by half from an continent-wide 1.3m in 1979 to 600,000. But the convention has not worked. Today there are only some 350,000 left. And still, a combination of human greed, habitat reduction and pernicious poverty is killing an estimated 100 elephants every day. Do the maths. In a decade we will have killed them all. In this series I show ivory where it belongs: adorning the faces of the matriarchs of Amboseli and their children. Will our children and theirs be able to see the same?