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Here's what narwhals' mysterious tusks are used for

Written By Business Insider on Tuesday, May 16, 2017 | 07:00 PM

 
Narwhals are an endangered species, with most of them residing in remote areas of Canada. Not much is known about the species of whale but new drone footage reveals at least one purpose for their mysterious tusks. -------------------------------------------------- Follow BI Video on Twitter: http://bit.ly/1oS68Zs Follow BI on Facebook: http://bit.ly/1W9Lk0n Read more: http://www.businessinsider.com/ -------------------------------------------------- Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.

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