During the summer in Qaanaaq, Greenland , an Inuit hunter paddling next to a resting narwhal observed a thin gauzelike layer coming off the narwhal's body and dissipating into the water. The event lasted only a few seconds, but Connecticut-based dentist Martin Nweeia, a Harvard University and Smithsonian Institution researcher who studies narwhal tusks as his passion, immediately saw the scientific significance of the hunter's observation.
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