In 9th grade biology, my fellow classmates and I were subjected to the Nova special The Miracle of Life on a very old and very passed-down VHS. I’ll never forget the concluding scene of a woman giving birth and everything being visible. This was completely unexpected and made a room of crazy 15-year-olds instantly uncomfortable.

I watched Life’s Greatest Miracle, the updated version of this biological classic, earlier in the week and remembered how informative and amazing the Nova special was. The shots of the ovum traveling through the fallopian tubes and the little sperm struggling to survive are simply mesmerizing. If you’re interested in learning about the biology behind sex and really knowing how babies are made, please give it a view. The entire program is available for free on the PBS website (and eloquently narrated by The Trinity Killer).

Outside of the US readers, it’s also on Youtube.