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Featuring groundbreaking new science, experiments and leading scientists from a variety of disciplines, the series unravels the natural history of the body's largest organ.
2018
7.5
2013
7.0
1988
3.9
2006
0.0
2015
2012
8.0
2005
2020
2022
8.6
7.7
2023
2024
8.2
2011
6.9
2010