Understand how the Pacific, surrounded by the Ring of Fire, is the epicenter of natural mayhem. Violence is part of life in the great ocean, and creatures that live there must choose whether to avoid conflict-or rise to meet it.

See how the quest to multiply has spawned a stunning array of unusual behaviors and adaptations. View forest penguins with a tenuous marriage and the secret rendezvous of great white sharks, and hear the tale of male pregnancy.