The elephant has extremely long incisors

One of the special things about elephants is their upper incisor teeth, which grow to be quite a prominent feature. We call the elongated teeth tusks, and they can be as long as 11 feet. The tusk is hollowed, and the hollow contains pulp with nerve tissues. Elephants have one-third of the tusk embedded in the cranium, and the remaining two-thirds are visible.

Both female and male African elephants have tusks, and the tusks never stop growing. In Asian elephants, only male Asian elephants have tusks, and not every male will get them. Most Asian elephants, however, do have small tusks, called tushes, which seldom protrude about an inch or two from the lip line.

Elephant tusks protect the elephant's trunk and work for self-defense. They use them to gather food, move objects, and strip bark from trees. Elephants even use their tusks to dig holes that allow them access to water during drought season. Individual elephants can be left or right-tusked, and the tusks they use the most are usually smaller because of wear and tear.