Zoo Atlanta is using 21st century techniques to study the way orangutans think and learn.
Apparently, data on orangutans is relatively sparse.
This is an interesting and fascinating idea, that should help them to learn more.
It involves involves computer games. In one game, a picture of an orangutan appears on the screen. Each time the real primate touches the photo, the picture disappears and the animal gets a treat.
They believe that teaching orangutans how to use computers helps scientists retrieve data that's objective. They have the screen built into a tree type structure that blends in with the animal's environment.
I can only wonder where this will take them, in say, 10 years. I can easily envision a future where they can effectively communicate with humans via computer. Who knows what else we could learn.