The Reproductive System – How Gonads Go: Crash Course Biology #134

Hank lets us in on the meaning of life, at least from a biological perspective – it’s reproduction, which answers the essential question of all organisms: how do I make more of myself? So, sex, how does it work?

References
http://www.sciencemag.org/content/281/5385/1979
http://www.medicinenet.com/miscarriage/article.htm
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1559814/)
Campbell Biology, 9th ed.