Librarian

Librarians are huge, ape-like mutants whose name came from their home, the ruins of the Moscow State Library. They are believed to be intelligent, as they can mimic human speech patterns almost perfectly (although whether they understand the words is unknown), work in packs of two to four to when hunting and have been known to leave ammunition lying around as bait to lure scavengers into traps. They are also territorial and will defend the library with their lives.

Appearance
Librarians look similar to ordinary gorillas in both posture and overall appearance. Their arms are longer and skinnier, however and they are slightly taller. The hands have two long fingers and a thumb while their feet have two equally long normal toes and a much shorter back toe, or dewclaw, and they have pointed ears. The upper lip of a librarian hangs low enough to cover the creature's shark-like teeth. The most common kind of librarians are covered in grey-blue skin and are found all over the library, with a preference for the top floor. They are curious and will agressively charge a supposed threat, though they will back down if the target doesn't run, turn his/her back on the librarian or shoots anywhere near it. They can be stared down but a shot will send them into an aggressive state that won't end until the trespasser or the librarian in question are killed. In the archives underneath the library are a much tougher breed of librarians known as Black Librarians. These creature have thick, black fur covering all their body and a missing upper lip, revealing rows of sharp, shark-like teeth. The head of this breed is also deformed and covered in tumorous bulges.