The Wild Kratts team is on a mission to decode the secret language of the dolphin with one of Aviva’s new inventions, but a hungry great white shark puts their new animal friends in harm’s way. Learning Goals: Animals that live in groups develop unique ways to “”talk”" with each other. Animals Featured: Dolphin, Great White Shark Never Before or Rarely Seen Wildlife Moment: Dolphin defending themselves from shark attack, and dolphins cooperating to hunt fish.