For the first time, spectacular aerial footage captured by the BBC shows elusive narwhal during their annual migration north from the west coast of Greenland to their summer feeding grounds in the fjords and bays beyond Lancaster Sound (Canada).
The cetaceans have been filmed from a helicopter. They were swimming in groups of 20 or 30, in perfect unison as they surface for air.
SB
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The BBC video
For more information:
http://news.bbc.co.uk
http://www.telegraph.co.uk
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