I’m really starting to hate this trope, I think everyone should just assume “in mice” unless the title states “in humans” as that is a much rarer event for research papers to be at that stage than mice or other mammals.
People will assume what they will. I'd prefer a more explicit title.
I just don’t think commenting with “in mice” on every biology papers adds to and informs the discussion. Maybe headline wars could be on a separate thread for each article?