We visit National Geographic Headquarters in Washington, DC to meet the newest National Geographic “Explorer in Residence,” Dr. Enric Sala and his important work on the “Pristine Seas” program with expeditions to the last remaining pristine areas in the ocean. We also hear the incredible story of a humpback whale, rescued at the brink of death, that said “thank you” to its human rescuers. And we hear the tragic story of the loss of one of our colleagues in Cuba.