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Uncovering the Mysteries of the Narwhal

Uncovering the Mysteries of the Narwhal
July 2010 in Seattle and July 2011 in Kirkland

What have scientists learned about the mysterious narwhal, or unicorn whale? Dr. Kristin Laidre, Research Scientist at the University of Washington Polar Science Center, discusses narwhal biology, migrations, diving, feeding, how narwhals are studied, and what mysteries remain.

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Great presentation - enjoyed very much. I feel informed, didn't know much about these animals.

Doing some research on Narwhal: Found this article:
http://www.news.harvard.edu/gazette/2005/12.15/01-narwhal.html
Which implies that there are sensory functions of the tusk - this was at the end of 2005 - has this research been debunked? Seemed credible and suggests the tusk is used for more than sexual selection?

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