Yes, they do! Species of both sexes use their tusks to dig for food or water, while males can also use tusks to battle their rivals, but the ivory has also attracted violence of a far more dangerous sort.

Have you ever heard about an elephant without tusks? In most cases, elephants lose their tusks because of some greedy people. Ivory is so valuable to some humans that many elephants have been killed for their tusks. This trade is illegal today, but it has not been completely eliminated. That is why some African elephant populations still remain endangered.

This might be interesting: Actually, tuskless elephants do exist but they do not have tusks due to genetics.

More Info: animals.nationalgeographic.com