Sir David Attenborough presents the final chapter of his epic overview of life on Earth as he transforms perceptions of cold-blooded animals in this major BBC series.
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 tropica
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 himsel
5 show lists