Sir David Attenborough continues the Life series by revealing the surprising lives of our cold-blooded cousins; the reptiles and amphibians.
Sir David Attenborough reveals the unknown lives of cold-blooded reptiles and amphibians.
Nigel Marven comes face-to-face with the deadly terciopelo snake.
Nigel Marven describes the difference between a milk snake and a coral snake.
Nigel Marven likes his snakes - even the deadly ones!
How did a female Komodo dragon give birth when she had never had contact with a male?
Wood frogs can withstand the closest thing to death without actually dying.
Wood frogs have the curious ability to withstand freezing.
A gallery of that cold-blooded, scaly group of animals: the reptiles.
Nigel Marven didn't expect to be bitten on the nose by this boa, we could see it coming!