Interesting brief note on the Roman religious wolf-man festival at https://www.theguardian.com/science/2018/feb/15/wolves-nudity-mayhem-why-an-ancient-roman-festival-is-still-controversial
its about all I can remember from reading Julius Caesar at school
I've often wondered about whether this has some connections with naked warrior cults, some of whom had connections to bears and wolves, in other European societies. What we see in Rome being a evolved end stage, integrated with city life.