The narwhal, a kind of Arctic whale, has been called “the unicorn of the sea” because of the long, straight, often spiraling tusk that males of the species can grow. It is illegal to import the tusks into the United States because narwhals are listed...Read more http://feeds.abcnews.com/click.phdo?i=a9948b76d4d542bd775093cfb098dc45
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