A walrus tusk is a long, elongated tooth that protrudes from the upper jaw of male and female walruses. These tusks can grow up to three feet long and are primarily made of ivory. They serve various purposes, including helping walruses haul themselves out of the water onto ice and as tools for digging in the sea floor for food. In addition to their functional uses, walrus tusks have cultural significance for indigenous peoples in the Arctic. They are often carved into art and tools, showcasing the craftsmanship and traditions of these communities. The tusks are also a subject of conservation efforts due to the threats faced by walrus populations.