Are we not mammals, thus not falling into the 'animal kingdom'?
Ok so we evolved from apes which are mammals, but then are blood turned to metal and we stopped being mammals and became robots, ooookkk.....I think someone failed biology.
Or do you mean mammals don't fall into the animal kingdom, which is also a little dense. Now I don't expect you to be a genious but atleast know what kind of creature you are.