This is some world-spanning discussion on the human form. Let me add a fun bit.
@Kaarme The Bible reference is probably the iffiest of them all, as god is supposedly without form (too base an idea to apply to GOD) and the deeper (or something) interpretation seems to be that god's image is entirely
mental, as in Humans are the only creations that are sentient, thinking beings with the ability to choose, blah, blah, blah.
Clearly, none of the people writing this have ever observed house pets, dolphins, apes...