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.