One point that I don't think anyone has touched on is the management of vaginal births.
Yes, it is possible for someone with no knowledge of vaginal birth to give birth to a bonny baby on her own.
Bit scary and somewhat painful, but nature is not stoopid and in an uncomplicated birth (the...
Oh for Heaven's sake!
" the project, I already made it. The ball flew about 20ft.."
OK. You've made a start. Now get a tape measure.
Repeat the experiment lots of times, keeping everything the same each time, and measuring "..about 20ft.." each time.
Take an average, now you actually know...
"After we are born, the umbilical artery and vein 'regress' and turn into different structures (ligaments, which surprised me):"
You are referring to the falciform "ligament" of the liver. There are a number of vestigial (and other) anatomical structures which are not really ligaments in the...