Thanks,
@Zoofan15 ! Years ago, I did have a copy of A Tiger By the Tail, but it got lost somewhere over the years. I've never seen The Zoo - Meet the Locals, although it sounds amazing.
Also, thanks for the photo! It's fascinating to look back on what the zoo's original plans were for the orangutans. From what I've heard, Horst was considerably older than Charlie, who was still a juvenile when he arrived in Auckland and they got along at first, although the predictable conflicts arose as the two males matured and they then had to be separated.
I do wonder why Charlie was taken from his mother at such a young age, given that orangutans in general stay with their mothers for a long period of time. Perhaps his mother Girlie had given birth to another infant? In the wild, there are large gaps between births, but sometimes in captivity a female might conceive again while still raising a juvenile.
Speaking of our orangutans' progenitors, I was luckily able to find pictures of Charlie's parents online (and even video footage on Mandai Wildlife Reserve's Facebook page from over a decade ago of Girlie playing like a youngster at age 43!) Zabu was indeed an impressive male and Charlie bears a strong resemblance to him. I've been looking everywhere for pictures of, or information about, Melur's parents, but no luck. All I've been able to find out was that her father was called Laki and her mother Yasmin, and that was through these forums.