An Indonesian swine, the male babirusa has prodigious tusks--formed from upward-growing canine teeth--that resemble antlers. (Babirusa means "pig-deer.") The animal's large lower canines resemble those of warthogs. The jungle-dwelling babirusa is generally docile; its tusks are most likely used to fight off mating competition.
Reprinted from Skulls, by permission of Black Dog & Leventhal Publishers. Copyright © 2012