Check out this video to learn more about Lisa Parr's studies on chimp emotions and what these studies can tell us about the human spark.
Dan Gilbert and Alan Alda discuss whether animals have the ability to "prospect," or plan ahead.
Researcher Brian Hare is an advocate for eliminating the chimpanzee pet trade. In the wake of the chimp attack, Brian explains the science behind his stance.
Larry Engel discusses the challenges and joys of filming Alan with the chimps at the North Carolina Zoo.
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