It is true that kirby and meta knight are of the same species but kirby is more intelligent than he lets on and vastly outclasses meta knight in terms of power.
Christ Kirby isn't a retard that's just offensive -.- he is supposed to be a baby, though. And they are the same species so.....but yeah I love Kirby.
I never considered Kirby a baby. I've actually never tried to place an age on him because his age doesn't matter and he's a pink blob.