Gorilla-wolves

Gorilla-Wolves are monstrous creatures found in Purgatory. They are presumably one of Eve's many creations.

Characteristics and Attributes
Gorilla-Wolves are creatures that are native, and perhaps exclusive, to Purgatory. They make their first and only appearance in Survival of the Fittest, when Dean and Castiel were dragged by Dick into Purgatory.

They are large, quadrupedal creatures that presumably possess both the qualities of a gorilla and a wolf. The front legs of the Gorilla-Wolves appear to function like that of a gorilla when it walks on all of its four limbs. However, their locomotion is much more reminiscent of that of a wolf's. Interestingly, a Gorilla-Wolf's tail resembles neither of the two eponymous animals. Whereas a gorilla does not possess a visible tail structure, and a wolf's tail is bushy, the Gorilla-Wolf possesses a slender, flexible tail much more akin to that of a cat. Their entire bodies appear to be mostly, if not completely, covered with fur.

A Gorilla-Wolf's eyes glow red. Whether this occurs only in the dark or during any intensity of light is unknown. Their eyes are set very high up on their heads, unlike how either a gorilla or a wolf's eyes are set just above the middle level of its face.

They are one of two creatures so far seen in Purgatory that do not appear humanoid, if we count the Leviathan's true form that is more like an amorphous black goo. Interestingly, unlike other monsters in Purgatory, Gorilla-Wolves also appear to work as a pack--another trait they share with the Leviathan.

Powers and Abilities
Not much is known about their powers, although they may share some common attributes of other monsters.
 * Enhanced Speed - They can move in quick bursts of speed, undeterred by Purgatory's thicket.

Weaknesses
Just like their powers, weaknesses of Gorilla-Wolves are not much known. Although an accomplished hunter like Dean Winchester was able to escape them using only conventional weapons.