Knowing what's going on in the minds of other humans is a leap of faith, but it's a pretty safe leap. Knowing what's going on in the minds of animals, however...that's another story. Reporter Ben Calhoun introduces us to Jerry Stones, a zookeeper who was duped by an orangutan named Fu Manchu. When Fu hid a makeshift key inside his cheek for weeks and weeks, was he knowingly deceiving his human captors? Primatologist Dr. Rob Shumaker, now at the Indianapolis Zoo, believes that the range of opinion on that question says as much about us as it does about the ape.

Then, Lulu Miller wonders what went through her dog Charlie's mind at the pivotal moment of his life.