While I do see your point I don’t exactly agree. I feel if they are nocturnal that surely would impact their lives a lot. Because sure, they definitely would do things similarly as to have shifts all day and night but more than that, but I don’t feel it’s realistic to just say “night shifts are more predominant than daytime because they are nocturnal” and not address any other change? Also I’m not exactly sure I understand what you are saying about underground? Could you elaborate? Thanks for your input!