Going for a dramatic approach, this installment takes a look at the changing world of nature, from the sky to the sea to the sun to the insects to volcanic action to the planet itself. It's nature's strange and intricate designs for survival and her many methods of perpetuating life in this spectacular story. It takes a lot to make nature footage dramatic but here we are and it's quite a sight. It's exciting, beautifully shot and photographed, sometimes a little suspenseful, though it might not look like it at the start of it. Experience nature's Secrets of Life and witness the wonder of it all with this solid and visually splendid True-Life Adventure!
The next programme explores the various sea-living invertebrates. In Morocco, the limestones are 600 million years old, and contain many invertebrate fossils. They fall broadly into three categories: shells, crinoids and segmented shells. The evolution of shelled creatures is demonstrated with the flatworm, which eventually changed its body shape when burrowing became a necessity for either food or safety. It then evolved shielded tentacles and the casings eventually enveloped the entire body: these creatures are the brachiopods. The most successful shelled animals are the molluscs, of which there are some 80,000 different species.
A behind-the-scenes view of the extraordinary idea of deploying the Spy Creatures, showing how the concept evolved and became the inspiration for the animatronic animals of the series. This documentary reveals the painstaking work behind building the lifelike models, from first concept until they become `alive' for the first time.
David Attenborough tells the revealing story of this Caribbean island's exotic but vulnerable wildlife. A team of conservation champions are making it their mission to save the most precious species. We see how Puerto Rican parrots, manatees and turtles are now making a comeback.
The incredible reef life and the birds, lizards and reptiles who cope with the lava rock islands of the Galapagos make this remote series of islands a unique natural habitat. The Panama and Humboldt currents regulate the seasons and the rhythm of life onshore and off.
For the animals in the polar regions, autumn means dramatic battles and epic journeys. Time is running out - the Arctic Ocean is freezing over and the sea ice is advancing at 2.5 miles per day around Antarctica. Polar bears gather in large numbers on the Arctic coast as they wait for the return of the ice. Soon, tempers fray and violent sparring contests break out. Meanwhile 2,000 beluga whales head for one special estuary, a gigantic 'whale spa' where they will thrash their snow-white bodies against the gravel and exfoliate. Inland, the tundra undergoes a dramatic transformation from green to fiery red. Here, musk ox males slam head-first into each other with the force of a 30mph car crash as they struggle to defend their harems. Frisky young caribou males play a game of 'grandma's footsteps' as they try to steal the boss's female. Down in Antarctica, Adelie penguin chicks huddle together in creches. When a parent returns from fishing, it leads its twins on a comical steeplechase - sadly there's only enough for one, so the winner gets the meal. Two months later and the chicks are fully feathered apart from downy Mohican hairdos - they're ready to take their first swim - reluctantly though, as it seems penguins are not born with a love of water! And with good reason - a leopard seal explodes from the sea and pulls one from an ice floe, a hunting manoeuvre that has never been filmed before. As winter approaches and everyone has left, the giant emperor penguin arrives and makes an epic trek inland to breed. The mothers soon return to the sea leaving the fathers to hold the eggs and endure the coldest winter on earth.