A creature that made a brief appearance in S1 Ep6 of Wolf Of Penumbra. We'll see more of them in the future.

"In a post-apocalyptic world where portals invite the supernatural, a mischievous high school student attempts to live a moderately normal life after becoming the first human-wulver hybrid. A werewolf."

If you're interested in reading it here ya go. ---> https://www.deviantart.com/littledevil-888/art/Wolf-Of-Penumbra-S1-Ep1-literature-802918761