Narwhal (Monodon monoceros) surfacing Narwhal's surfacing in the High Arctic
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URL: http://en.wikipedia.org/wiki/Image:Narwhal%27s_surfacing_in_the_High_Arctic.jpg
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The narwhal, or narwhale (Monodon monoceros), is a medium-sized toothed whale that possesses a large "tusk" from a protruding canine tooth. It lives year-round in the Arctic waters around Greenland, Canada, and Russia.