Thanks guys
I was especially interested to see Darli the baby orangutan. That's new since I visited last year although I see she spent 12 years in the freezer. I was quite surprised to see her in a climbing pose, seems a bit unnatural when she still looks like a newborn orangutan and her age of two days is even given on the sign.
I remember the story of her birth well, it was very sad, especially since they lost her mother Dara the next day. Was Darli the name given to her by the zoo? Maybe one of the other orangutans on display is her mother, although if it was I would have thought they would have been exhibited together.