found only in the frozen/winter biomes.
One of the more difficult zombies to deal with as they have a rather large amount of health...
A decent strategy to kill these guys is to cripple their legs. and hit them while they are down.
They are also the sole target of a certain quest where the player is required to get the killing blow with a fireaxe. Doing so will reward 1 skill point. completing the quest in the allotted time frame will reward an additional skill point.