Describes how the polar bear, also called Nanuk, thrives in the Arctic and explains the lessons that the Inuit people have learned from watching the creature.
Describes the parental behavior of Emperor penguins, focusing on how the male keeps the egg warm until it hatches and how the parents care for the chick after it is born.
Introduces many different species of sharks, pointing out their unique features, and discussing the physical characteristics and behaviors that make them such efficient predators.