Oxygen – we all need it, we can't live without it. It's integral to life on this planet. And it's probable that, as you watch this film, you will be breathing in an oxygen atom that was also breathed by Genghis Khan – or by the first ever apes to stand upright on the plains of Africa. The oxygen that we breathe is made from two oxygen atoms joined together – O2. They were first joined more than 3 billion years ago by the earliest blue-green algae to evolve. The oxygen molecule first came from bacteria and was present in the fires that destroyed the dinosaurs and the chemical reactions in all human cells, and as ozone they protect the earth from radiation. Since then, both together and apart, they've had the most extraordinary adventures. Each of the two atoms in an oxygen molecule is virtually indestructible – so they have been first-hand players in some of the most dramatic events in the whole of Earth's history. It's often said that we are breathing the same oxygen that the cavemen did. The life of a single molecule of oxygen is traced on it's astonishing journey spanning millions of years, from its creation, into photosynthesis, through the age of the dinosaurs, early man, and on into today.
In southern Israel, two vastly different worlds live side-by-side. A tropical sea and ancient coral reef teem with aquatic life alongside a harsh desert landscape filled with hardy reptiles and alien acacia trees. Venture into a part of Israel that few people imagine exists.
Winter is here. Ready or not, creatures big and small endure the harshest and most unforgiving season on the planet. Some cling to life in these bitter months…while others see opportunity on the ice. In this special, wildlife around the globe fights tooth and nail to survive the winter season, against a striking frozen backdrop.
2017 • Nature
Fresh water is our most precious resource and it defines the distribution of life on land. Follow the descent of rivers from their mountain sources to the sea. Watch spectacular waterfalls, fly inside the Grand Canyon and explore the wildlife below the ice in the world's deepest lake. Witness unique and dramatic moments of animal behaviour: a showdown between smooth-coated otters and mugger crocodiles; deep-diving long tailed macaques; massive flocks of snow geese on the wing and a piranha frenzy in the perilous waters of the world's largest wetland.
The Comb-crested Jacanas are unique birds that use their long toes to walk delicately across lotus leaves and catch underwater prey. This episode, filmed between the rainy season and dry season in Kakadu, follows a father bird raising his chicks through their dramatic and difficult first year.