That's really fascinating--thanks for elaborating. That said, this isn't, for me, a strong refutation of design. Perhaps the designer's purpose was to create

That's really fascinating--thanks for elaborating. That said, this isn't, for me, a strong refutation of design. Perhaps the designer's purpose was to create creatures with imperfections such as these, with the higher purpose of communicating something deeper. Or, is there any way of knowing that we won't some day discover there is a very good reason for this?