Life on Earth - Full Series Information, Trailer & IMDb Reviews
Life on Earth Season 1 Episode 9
Episode Title: Chapter 9: Eggs, Pouches, and Placentas
Genre:
Documentary
Countries:
UK,
Airing Date: March 13, 1979
Runtime:702 mins
IMDb Rating:
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Life on Earth: A look at the evolution of mammals from reptiles 200 million years ago. This remarkable transition involved the development of mechanisms for regulating body temperature, for allowing the young to develop in the womb and for suckling newborns. Attenborough also explores the South American origins of marsupials and their colonisation of Australia.