The cold waters of the Arctic are home to an unusual whale that you might have heard of, the narwhal. Narwhals have a long, sharp tusk that juts out of their heads. As NPR's Nell Greenfieldboyce ...
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The world is filled with stunning creatures, some of which have mostly evaded human notice. One among them is the narwhal (Monodon monoceros), according to Discover Wildlife. Their features are so ...