It's kinda gross when you look at the pictures, but you can't deny the miracle of science for sure. Biologists have been saying for decades that a fetus needs a living uterus to develop, well that might be debunked now. This is what was described about how well developed the embryos came to be in the artificial uterus.
The mouse embryos looked perfectly normal. All their organs were developing as expected, along with their limbs and circulatory and nervous systems. Their tiny hearts were beating at a normal 170 beats per minute.
This is the first time such a feat has been accomplished. The study was to help scientists understand how mammals develop and how gene mutations, nutrients and environmental conditions affect the fetus. This will definitely bring up the debate one day as to whether or not other animals and humans should be cultured outside of a living womb. There's no doubt that it will be highly controversial, much like with cloning.