The ash tusk is a mutated, post-eruption boar. The fallen ash from Yellowstone altered the boar's behavior, causing them to create anthill like tunnels. The boar has a very strong, crystallized hide that can easily deflect 9mm rounds. The Ash Tusk has multitudes more tusks than the pre-eruption boar, mostly around the mouth area, but some also on the top of the head. These new beasts are incredibly larger than their post-apocalyptic counterparts. The bottom side of the boar, unlike the top hide, is soft and can easily be pierced.