We were like this, once...

Only, we weren't ectopic. the picture comes from Wikimedia, the image/audio/movie part of wikipedia. Original page is linked, just click the picture.

the embryo in the image is seven weeks old, 10mm long, and implanted itself in the wrong place, in one of the ovarian tubes connecting the ovaries to the womb. In the upper part, the placenta's willi are forming, although I guess they would not be able to complete their development as normal, not being in the proper place.

It's fascinating to think that we were like that, once. You can see the eyes, the limbs and the brain, and all little parts which would grow up to male up one of us. Incredible, isn't it?