What Is Life? Is Death Real?

49:15

This episode shows the ways in which plants defend themselves against animals, and grow in search of sunlight, nutrients and water, all the elements needed to survive.

S1E2 • Private Life of Plants • 1995 • Nature

48:33

The ocean's influence dominates the world's weather systems and supports an enormous range of life. This first episode demonstrates the sheer scale, power and complexity of the "Blue Planet".

S1E1 • Blue Planet I • 2001 • Nature

89:30

From the food on our tables to the fuel in our cars, crude oil seeps invisibly into almost every part of our modern lives. Yet many of us have little idea of the incredible journey it has made to reach our petrol tanks and plastic bags from its origins millions of years ago.

2007 • Nature

45:18

Making Of (Special Fly On The Wall inserts at the end of each programme will explore, in greater detail, how the BBC's Natural History Unit was able to capture such stunning footage for the first time.)

Extra • Life in the Undergrowth • 2005 • Nature

58:10

As the Serengeti starts to dry out, competition hots up between the families we were first introduced to in Episode One. The strong females take centre stage, dealing with wayward males and fighting for the survival of their kin. Lioness Kali and her sister are enjoying time with their seven cubs. Together, hunting is much easier and life is good. But their happiness is short-lived as they are being tracked by Sefu, a male lion from the pride. He takes their food and then relentlessly pursues them, but what does he want? A new family has moved into the Serengeti: Kike, a first-time cheetah mother with three tiny cubs in tow. If her first litter is to survive, she must learn the skills of motherhood fast. Not only must she learn to hunt and keep her cubs safe, but she must keep them away from the other predators who are out to get them. Bakari the baboon struggles to raise the baby he rescued when its mother was killed and desperately tries to find a female to help him raise his motherless baby. Nalla, the elephant matriarch, is worried for the safety of her baby when a group of huge male elephants come to fight over one of the family's females. A young female ostrich attempts to raise an enormous brood of chicks whilst being watched by the hungry eyes of the hyena leader, Zalika. As pressure builds, Kali decides that for the sake of her cubs she must confront the male stalker Sefu – but it's a dangerous decision. Bakari is threatened by the leader of the troop when their rivalry escalates and the baby is put at risk. Will a kind-hearted female called Cheka help him raise the baby? Only the strong survive in the Serengeti, and the mothers are the toughest of the lot.

S1E2 • Serengeti • 2019 • Nature

48:05

Every year, thousands of salmon make their way upstream along the nearly 2000-mile-long mighty Yukon River, desperate to reach spawning beds. Eagerly checking their progress is a host of hungry predators, from grizzly bears to bald eagles-all desperate to stock up on protein before the long winter months ahead.

S1E7 • Arctic Secrets • 2015 • Nature