Again, based on your text the best choice that suits it will be to inform.
Why?
The author is trying to inform you in different spots in this passage, as said "Shumaker would like to know if orangutans can learn language."
Or "Think Tank researchers are studying creatures as various as hermit crabs, leafcutter ants, and macaques."
This information is used to inform in person reading.
Hope this helped! :D