The Best-Laid (Body) Plans (Ch.6)

After reading only six chapters of Shubin's book, I have learned so much about how the development of humans share similarities with that of other living organisms. Despite how distinctly different we, humans, are from other species such as jellyfish, we strangely share identical body plans. I found it quite interesting, and at the same time quite strange how similar embryos can turn out to take forms so differently.
I also found it quite hard to believe how only three simple layers have the ability to shape and form the complex inner and outer structures of humans. That just proves how unbelievably strange the stages from contraception to birth is. Furthermore, after reading about several labs that were executed by others, I was amazed to discover how far we as humans have come in understanding the growth of living organisms.