

http://en.wikipedia.org/wiki/Babirusa
http://scienceblogs.com/tetrapodzoology ... n_head.phpThe male has highly conspicuous tusks formed from the canine teeth, but their exact shape depends on the species. In the north Sulawesi babirusa, they grow upward through the skull and curve back towards the skull between the eyes, while they lack the strong curve in the Togian babirusa.[2] Both the north Sulawesi and Togian babirusa are nearly bald (with only very fine hairs), but the latter has a relatively distinct tail-tuft. As also suggested by the alternative names for the Buru babirusa, hairy or golden babirusa, it is covered in relatively dense golden hair, resulting in a rather different appearance than the other species.[2]
The female has only one pair of teats.
Babirusas can get impaled by their own teeth
Ain't evolution fascinating?