Editing Recapitulation theory (section)

==Further reading==

* {{cite web|author=Division of Biology and Medicine, Brown University |title=Evolution and Development I: Size and shape |url=http://biomed.brown.edu/Courses/BIO48/30.S&S.HTML}}
* {{cite web |author=Haeckel, Ernst |author-link=Ernst Haeckel |year=1899 |title=Riddle of the Universe at the Close of the Nineteenth Century |url=http://www.ucmp.berkeley.edu/history/haeckel.html}}
* {{cite journal |doi=10.1007/s004290050082 |pmid=9278154 |title=There is no highly conserved embryonic stage in the vertebrates: Implications for current theories of evolution and development |journal=Anatomy and Embryology |volume=196 |issue=2 |pages=91–106 |year=1997 |last1=Richardson |first1=M. K |last2=Hanken |first2=James |last3=Gooneratne |first3=Mayoni L |last4=Pieau |first4=Claude |last5=Raynaud |first5=Albert |last6=Selwood |first6=Lynne |author-link6=Lynne Selwood |last7=Wright |first7=Glenda M |s2cid=2015664}}
* Borchert. Catherine M. and Zihlman, Adrienne L. (1990) ''The ontogeny and phylogeny of symbolizing'', in Foster and Botscharow (eds) [https://books.google.com/books/about/The_Life_of_symbols.html?id=dvhhAAAAMAAJ ''The Life of Symbols'']
* Bates, E., with L. Benigni, I. Bretherton, L. Camaioni, & V. Volterra. (1979). ''The emergence of symbols: Cognition and communication in infancy.'' New York: Academic Press
* [https://doi.org/10.25651/1.2022.0005 Gerhard Medicus (2017, chapter 8). Being Human – Bridging the Gap between the Sciences of Body and Mind, Berlin VWB]
*{{cite journal |doi=10.2307/2801865 |jstor=2801865 |title=The Intelligence of Later Acheulean Hominids |journal=Man |volume=14 |issue=3 |pages=371–91 |year=1979 |last1=Wynn |first1=Thomas }}