<p><a href="https://www.scientificamerican.com/podcast/episode/whats-a-narwhals-tusk-for/">What's a Narwhal's Tusk For?</a></p>

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<p><a href="https://www.scientificamerican.com/podcast/episode/whats-a-narwhals-tusk-for/" rel="noopener noreferrer">What's a Narwhal's Tusk For?</a></p>

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What's a Narwhal's Tusk For?

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Science

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What's a Narwhal's Tusk For?

What's a Narwhal's Tusk For?