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The fourth episode sees Brian in Australia looking at how the size of life affects each plant and animal, and how long it can survive.
Episodes
EP 1
What Is Life?
2013-01-27
EP 2
Expanding Universe
2013-02-03
EP 3
Endless Forms Most Beautiful
2013-02-10
EP 4
Size Matters
2013-02-17
EP 5
Home
2013-02-24
Voice Cast
Professor Brian CoxSelf - PresenterVoice Actor
