Undead Wolf are one of the new Undead Animals found in Red Dead Redemption's new downloadable episode Undead Nightmare.
Characteristics
Undead Wolves are much like their living counterparts, except for the fact you can only kill them with a headshot. The other distinguishing characteristic is the color of the Undead Wolves fur, which tends to be darker than their living counterparts.
Like all animals in the Undead Nightmare DLC pack, Undead Wolves cannot be skinned.