The growing animals are developing new skills and learning how to survive alone.
In order to survive, animals need a place to live that provides the necessities of life, shelter from the elements, and a refuge from enemies.
How animals try to gain a position of power in their worlds, where the most powerful have the best access to food and water and are the most attractive to the opposite sex.
Competition to win a partner creates both the most extraordinary beauty and life-threatening violence anywhere in nature.
David Attenborough examines how animals raise their offspring.