After months of courtship, the female shingleback lizard faces one of nature’s toughest labours. Unlike most reptiles, she gives birth to live babies weighing nearly a third of her body weight! Subscribe: bit.ly/BBCEarthSub #AnimalBirth #Reptiles #DavidAttenborough #Wildlife #NatureDocumentary Watch more: Best of BBC Earth 🌍 bit.ly/BestOfBBCEarth Best Animal Fights 🥊 bit.ly/BestAnimalFights Videos over 10 minutes ⏰ bit.ly/3SHJCEJ Planet Earth III 🌍 bit.ly/PlanetEarthIIIPlaylist Frozen Planet II ❄️ https:/bit.ly/FrozenPlanetIIPlaylist Blue Planet II in 4k 🌊 bit.ly/BluePlanetII4kPlaylist This clip is taken from 'Life in Cold Blood' (2008) In telling the epic story of the reptiles and amphibians David Attenborough completes his overview of life on the planet. The very latest technology enables extraordinary and previously unseen behaviour to be captured in intimate detail, overturning the myth that cold blooded life is slow, solitar...