Today I learned:
"When the fertilized egg on the womb begins to multiply it's cells, it form a ball of cells (blastula) and then folds in on itself to become a gastrula.
There's an opening at one end, and that begins to pinch together and close-up, forming your very first body part - your anus.
So, therefore, we all start out as assholes, and it's up to us to change."
(shamelessly stolen from reddit)
So, (other than this bit of incredibly useful knowledge) ...what did YOU learn today?