Humans are a bit rats. I'm not calling anyone cheap; The meaning of the phrase is literal. For millennia, humans and rats have had a very close relationship and it is not by chance. They immediately settled in our cities, we have chosen them as a research model and there are even those who have them as pets. In anthrozoology, the science that analyzes human interactions with animals, every relationship has an explanation. In this case, it is largely because we look alike. As the saying goes, “tell me who you're with and I'll tell you who you are.”