Overview: This final episode looks at the vocalization of whales and dolphins, and how they communicate with each other.
Watch Trailer
First Air Date: Aug 14, 2011Last Air date: Aug 28, 2011Season: 1 SeasonEpisode: 3 EpisodeRuntime: 60 minutesQuality: HDIMDb: 7.00 / 10 by 3 usersPopularity: 1.432Language: English