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From the huge blue whale to the small winged snail, from the ray to the coral: countless species are native to the expanses of the seas. WHAT IS WHAT glides into the depths with a diving boat and discovers fantastic animals and landscapes.
First Air Date : Oct 06, 2001
Last Air date : Jun 26, 2010
Episode : 52 Episode
Season : 2 Season
Runtime: 25:14 minutes
Studio:
Country: Germany
Crew:
