Have you ever wondered how a human being develops itself out of the initial cell in the womb of the mother? More specifically, if you look at the proportions between the various organs and body parts during the growth of the embryo, you can see that every one of them grows at a different rate. In the beginning all of them are roughly the same size, but as the embryo grows, certain parts of the body get bigger compared to the rest. Read more ⟶