Animals in the womb
Researchers from the National Geographic managed to photograph tiny animals for a few weeks before they were born. So we have the photos that we have never seen before but at the same time nice and frightening.
To photograph fully formed embryos, it took a lot of tiny cameras. This is the most detailed pictures that have ever been able to get. On the National Geographic released a documentary film on this subject. Despite the unusual images, unborn babies are very cute.