NEWS.com.au | Zookeeper's heartfelt tribute to world's oldest Sumatran orangutan NEWS.com.au A PERTH zookeeper has penned a beautiful tribute to Puan, the world's oldest Sumatran orangutan, describing the profound impact she had on all who met her. news.com.auJune 19, 201812:06pm. Video; Image ... Perth zookeeper's heartfelt tribute after world's oldest orangutan dies 'Respectful end for an old lady': World's oldest orangutan dies in Perth |