In this July 15, 2016 photo, Sandra, the orangutan, walks in her enclosure at the former city zoo now known as Eco Parque, in Buenos Aires, Argentina. Sandra became known worldwide when an Argentine court issued a landmark ruling in 2014 that she was entitled to some of the legal rights enjoyed by humans. She's no longer on display for curious visitors. (Photo by Natacha Pisarenko/AP Photo)
