Overview:This final episode looks at the vocalization of whales and dolphins, and how they communicate with each other.
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First Air Date: Aug 14, 2011Last Air date: Aug 28, 2011Season: 1 SeasonEpisode: 3 EpisodeRuntime: 60:14 minutesQuality: HDIMDb: 4 / 10 by 3 usersPopularity: 2.752Language: en
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