In this September 13, 2016 photo, Sandra the orangutan sits in her enclosure at an eco-park, formerly the Palermo zoo, in Buenos Aires, Argentina. The definition of orangutan is written in a sign outside Sandra’s cage: from the Malay expression meaning “person of the forest”. But Sandra remains behind bars in a concrete cell in Buenos Aires and may never see the rainforest of her ancestors. (Photo by Natacha Pisarenko/AP Photo)
