A comprehensive examination is taken into the many different habitats on Earth, featuring an exploration of the Great Barrier Reef.

When a colony of emperor penguins return from hunting, they prepare to endure the coldest weather on Earth to ensure the survival of their chicks.

David the chimpanzee in Senegal, Africa must sire an heir to ensure the survival of his legacy as rival males seek to claim his position as alpha male.

When her daughter aims to expand her territory, a tigress named Raj Behera goes to extraordinary lengths to protect her dynasty and her four cubs.

A painted wolf matriarch finds her dynasty in Zimbabwe, Africa under threat from a rival pack led by her daughter, who needs the space for her growing family.

The future of Kenya's Marsh Pride looks uncertain when the male lions disappear, leaving the remaining females to defend their cubs and dynasty from threats.