In Happy Feet 2, I noticed that the penguins used the hitori, futari, ... counter words for themselves, rather than 羽.
In fiction involving talking animals where the humans are regarded as somewhat "outsider", what counter word do they use for humans? Do they still use hitori, futari, ..., or would they use something else such as 頭 (if a penguin were speaking) or 匹 (if a shark was)?