Overview: 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.
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First Air Date: Jan 27, 2013Last Air date: Feb 24, 2013Season: 1 SeasonEpisode: 5 EpisodeRuntime: 59 minutesQuality: HDIMDb: 7.67 / 10 by 27 usersPopularity: 2.251Language: English