In Secrets of Whales, award-winning National Geographic Explorer and Photographer Brian Skerry plunges viewers deep within the epicenter of whale culture to experience the extraordinary communication skills and intricate social structures of five different whale species: orcas, humpbacks, belugas, narwhals and sperm whales. He reveals that whales share an amazing ability to learn and adapt to opportunities, from specialized feeding strategies to migration techniques. There is also evidence of deeper, cultural elements of whale identity, from unique dialects to making lifelong friendships to organized social customs like singing contests to grieving deeply for the loss of loved ones. Here, these alluring creatures are revealed in all their glory: a potent symbol of how these majestic creatures can teach us about ourselves—and our planet. The four-part series is executive produced by James Cameron and narrated by Sigourney Weaver.