I'm guessing you knew this but for the other less informed, it's an interesting image of animals in the street. I thought it meant animals were washed away.
https://www.loc.gov/everyday-mysteries/meteorology-climatology/item/what-is-the-origin-of-the-phrase-its-raining-cats-and-dogs/#:~:text=“Cats and dogs” may come,meant a cataract or waterfall.