Dizzy that made me laugh, I have known babies being born without bum holes or mouths or ears etc etc, I worked in the disabled childrens team and in respite care and used to come across some strange things, also, mum used to tell me all sorts of tales when she was a mental health nurse as many babies born with profound difficulties would be put into the asylum....I could write a book "Tales from the Asylum!.
Its understandable that some times when we are developing, things can and do go wrong. A man who bred Boxer dogs had one pup born with no head,!!!!!! I suppose as we do not see these things they are a supprise but its amazing what can be done medically these days... In my head I remember a common phrase I heard ALL the time in Leicester, "you chat *hit man"!!!
Nature, beautiful and there for a reason!!