Answer: Second incisor
Notes: Tusks are elongated, continuously growing front teeth (incisors) usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses but in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males’ are larger.
