Tusk

A tusk is an elongated, continuously growing tooth, primarily seen in animals like elephants, walruses, and some wild boars. These tusks are made of dentin, a dense tissue, and are used for various purposes such as digging, lifting, defense, and social interactions. In elephants, tusks are also important for stripping bark from trees and fighting. The size and shape of tusks can vary widely depending on the species and individual. They are valuable and often targeted for ivory, which has significant conservation and ethical implications.