In the cities yes. I live outside the city. Some of the biodiversity near me is deadly and city dwellers haven't a clue. Regardless, fish outweigh mammals by a

In the cities yes. I live outside the city. Some of the biodiversity near me is deadly and city dwellers haven't a clue. Regardless, fish outweigh mammals by at least an order of magnitude. then calculate arthropods, mollusks, bacteria and plants and you will see this is an overstating of a complex ecosystem.