Sonic Sea

The ocean is a world of sound not sight. Whales and other marine life depend on sound to mate, find food, migrate, raise their young and defend against predators. Sonic Sea travels beneath the ocean's surface to uncover the damaging consequences of increased ocean noise pollution and what can be done to prevent the extinction of some of the largest creatures on Earth. Narrated by Rachel McAdams, and featuring interviews with marine ecologists, ocean life experts, and wildlife activists (including Sting), the film highlights how noise from both commercial ships and other sources has affected whales in recent years. (Discovery Networks)