Any woman who has been pregnant knows one thing is true about growing another human being: it makes absolutely no sense.
No, seriously, think about it: you grow a person? From nothing? Inside your own body? The whole seems ludicrous. And even more ludicrous is the thought of what happens to your own body while all of that is happening. It’s not like your own internal organs can just disappear for a while to let another human play trampoline for nine months, right?
Well, it turns out, that’s exactly what happens.
Watch the incredible time-lapse of pregnancy.