What are animal tusks and which animals have them? This Animal Autofill video from Nat Geo Wild introduces the tusks of the narwhal and the babirusa. We also see how African elephants and walruses use their tusks. More from Wikipedia:
Next: Watch a hippo get his teeth brushed and a Humphead parrotfish crunch on coral with its teeth. Then see The Houston Zoo‘s Babirusa and learn more about The Narwhal, Unicorns of the Sea.
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canine teeth, as with warthogs, pigs, and walruses, or, in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males’ are larger. Tusks are generally curved, though the narwhal’s sole tusk is straight and has a helical structure.