The tusks of the Babirusa (genus Babyrousa) can, in fact, grow in such a way that they pierce the skull.
The tusks are used for intraspecific fighting. The upper tusks have developed as shielding and the lower tusks are offensive and dagger-like. The Babirusa male actively sharpens his lower tusks on trees.
(Top photo credit: Masteraah) (Bottom photo credit: Darren Naish)

The tusks of the Babirusa (genus Babyrousa) can, in fact, grow in such a way that they pierce the skull.
The tusks are used for intraspecific fighting. The upper tusks have developed as shielding and the lower tusks are offensive and dagger-like. The Babirusa male actively sharpens his lower tusks on trees.
(Top photo credit: Masteraah) (Bottom photo credit: Darren Naish)

The tusks of the Babirusa (genus Babyrousa) can, in fact, grow in such a way that they pierce the skull.

The tusks are used for intraspecific fighting. The upper tusks have developed as shielding and the lower tusks are offensive and dagger-like. The Babirusa male actively sharpens his lower tusks on trees.

(Top photo credit: Masteraah)
(Bottom photo credit: Darren Naish)

  1. greatmindsofscience reblogged this from shychemist
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    I love these guys! This is the male babirusa at the Toronto Zoo:
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