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Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous
In the frigid Arctic Ocean, a mysterious toothed whale—the narwhal— resides...
August 2017

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Right Whale Baleen
A right whale opens its mouth wide, revealing huge plates of baleen hanging from...
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Inside a Sperm Whale's Mouth
Sperm whales have conical teeth on their long, narrow, lower jaw. The teeth fit...
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Giant Squid Sucker Marks
Many sperm whales stranded on beaches or caught by whalers exhibit telltale...
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