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Why do walruses have tusks?
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The tusks of a walrus are the upper canine teeth, which grow very long, sometimes to a metre in length. Male walruses usually have longer tusks than females. Walruses use their tusks to scrape up the shellfish and clams they eat, and for gripping the ice, or fighting enemies. Their tusks are also the sign of a walrus's age and importance. The animal with the longest tusks leads the herd.
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Book:
Best Ever Q&A
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Section:
Nature
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Chapter:
Sea Mammals
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