Oh dear. Hyperbole again?
But thanks for the life story - that was really fascinating. I could not tell you a single thing about what I learned in biology. I only remember that freshman science was the only time I cheated on a test, and that when we had a dissection lab of some kind of small creature in whatever class I took as a junior and were told just to identify organs and it all looked the same to me, I had an internal meltdown. I expected my hand to be held. Then at my liberal arts college the biology professor spent almost the whole semester on tapeworms.
I suppose the origin of humanity may be the most important question.