Walrus tusks are made of ivory, which is a hard, white material that comes from the long, pointed teeth of the walrus. These tusks can grow up to three feet long and are used by walruses for a variety of purposes, including digging for food, fighting off predators, and even helping them pull themselves out of the water onto land.

The ivory in walrus tusks is made up of a combination of two materials: dentin and cementum. Dentin is a hard, dense tissue that makes up the bulk of the tusk, while cementum is a softer, more porous material that covers the outer surface of the tusk. Together, these two materials give walrus tusks their unique appearance and strength.

Because walrus tusks are made of ivory, they have been highly prized by humans for thousands of years. In fact, walrus ivory was one of the most sought-after materials in the ancient world, used to create everything from jewelry and decorative carvings to tools and weapons. Today, however, the trade in walrus ivory is heavily regulated in order to protect walrus populations from over-harvesting.

In addition to their historical and cultural significance, walrus tusks also play an important role in the ecology of the Arctic region. Walruses use their tusks to break through ice to create breathing holes, which are essential for their survival in the harsh Arctic environment. Without their tusks, walruses would struggle to find food and navigate through the ice-covered waters.

Overall, walrus tusks are a fascinating and important part of the natural world. Made of ivory and used for a variety of purposes by walruses, these unique structures have captured the imagination of humans for centuries. By understanding more about what walrus tusks are made of and how they are used, we can better appreciate the beauty and complexity of these amazing animals.

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