Life on Earth - Season 1 - Eps 9: The Rise of the Mammals
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 colonization of Australia
About Life on Earth

Title: Life on Earth
First Air Date: 1979-01-16
Last Air Date: 1979-04-10
Status: Ended
Rating: 9.1/10 (from 39 votes)
Language: EN
Seasons: 2
Total Episodes: 13
Network: BBC Two
Genres: Documentary
Production Companies: BBC Studios Natural History Unit
Synopsis
The story of life, from the first primitive cells to the plants and animals that now live around us.
Cast

David Attenborough
Self - Presenter