Short answers, pulled from the story.
The word orangutan derives from the Malay words orang meaning person and hutan meaning forest to translate as forest man. The term entered the English language in 1693 through the writings of physician John Bulwer who used the spelling Orang-Outang.
The orangutan lineage diverged from the lineage leading to humans gorillas and chimpanzees between 19.3 and 15.7 million years ago. This divergence occurred within the subfamily Ponginae which contains the only surviving members of this group.
Orangutan mothers nurse their offspring for up to eight years to allow for the transmission of complex skills and cultural knowledge. Young orangutans are able to live alone when they reach adolescence at six or seven years of age.
Fewer than 800 Tapanuli orangutans are estimated to still exist in the Batang Toru forest of Sumatra. This population is found only in the Batang Toru forest of Sumatra making it one of the most endangered of the great apes.
Primatologist Biruté Galdikas began her field studies of the apes in Borneo in 1971. She settled into a primitive bark-and-thatch hut at a site she dubbed Camp Leakey to study their behavior for the next four years.
Spain became the first country to recognize the rights of some non-human great apes in 2008. This legal recognition marked a significant shift in the ethical debate surrounding the rights of orangutans and other great apes.