David Attenborough the final chapter of his epic overview of life on Earth

EP1. The Cold-Blooded Truth

Giant crocodiles courting, tortoises jousting with 'lances' and bright red sumo-wrestling frogs... David reveals the surprising truth about the cold-blooded lives of reptiles and amphibians, as dramatic, as colourful, as tender as any other animal. What's been the secret to their sucess for the last



EP2. Land Invaders – Amphibians

The extraordinary and intimate lives of the soft-skinned amphibians. Marsupial frogs where the father carries his young in pouches, giant metre-long salamanders staging wrestling matches and newts that display just like birds of paradise. From steamy jungles to dry deserts, David looks at the bizarre life histories that enabled the amphibians to break their ties with water and invade the earth.



EP3. Dragons of the Dry – Lizards

David comes face to face with a monitor lizard that stands on tiptoe, is flashed at by anole lizards and uses a rod and line to tempt a timid skink out of its burrow. Other scaly stars include jacky lizards that wave, wrestling beaded lizards and the largest chameleons in the world jousting in the trees. He also encounters the world's smallest chameleon, no bigger than his thumbnail, and the biggest lizard in Australia.



EP4. Sophisticated Serpents – Snakes

How have this most misunderstood group of reptiles used the most simple but elegant body plan to succeed on land, sea and even in the air? A CCTV stakeout of rattlesnakes hunting shows, for the first time, what clever predators they are.

David is himself on the receiving end of a spitting cobra's chemical weapons. But snakes aren't all about violence. Their tender side is displayed in the sinuous courtship of kingsnakes and the water birth of 15 beautiful yellow anacondas.



EP5. Armoured Giants

David meets the reptile heavyweights to show what it's like to live within a suit of armour. He reveals a dynamic, warm and caring side to ancient giants.

Mating giant tortoises fit together like spoons. Green turtles show true passion mating in tropical seas. A mother spectacled caiman rescues a huge crèche of babies. And saltwater crocodiles ambush fish just like bears catching salmon.