Narwhals: Arctic Whales With Super-Sensing Tusks

Tusking Arctic Narwhals
Narwhal Tusks
Narwhal Tusk CT Scan
Danish Royal Decoration
Narwhal Tusk Researcher Martin Nweeia
Narwhal Tusk Pulp
Narwhal Tusk Electron Microscope Close-up
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Tusking Arctic Narwhals
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The interior pulp of a narwhal tusk contains a system of nerves that runs the full length of the tooth.

 Read "A Flexible, 9-Ft. Whale Tooth With Super-Sensing Power?"
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—Photograph by Joseph Meehan
 

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