CBC - 1000 Days for the Planet Human Adventure (2013) Par2 The Song of the Humpback
A crew of mariners, scientists and filmmakers are followed as they cast off on the Sedna IV, an oceanographic schooner, to sail around the world exploring the beauty of nature, how ecosystems work and conservation challenges facing the planet.
Part 2: The Song of the Humpback
Scientists attempt to decipher the secrets behind the songs of humpback whales.
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