Scientific Source #56 – Article
“In human sexual reproduction, both in vivo (inside the body) and in vitro (outside the body), the biological beginning of a new human being/organism occurs at Carnegie Stage 1a, at first contact of the sperm and the oocyte, the beginning of the biological process of fertilization.”56
![](https://whendoeslifebegin.org/wp-content/uploads/2021/08/Scientific-Source-56.png)
56Stanton, B., Science tells us when life begins. Why isn’t it taught in the classroom?, Washington Examiner, 2018, https://www.washingtonexaminer.com/science-tells-us-when-life-begins-why-isnt-it-taught-in-the-classroom.