I’d say everything that pertains to humanity is rooted in biology, specifically evolutionary biology.
✔️This can explain our evolution from Neanderthals to where we are now.
✔️Why we fight wars
✔️Why we experience emotions
✔️Why we sleep at night
And much much more
Perhaps MOST people think biology in rather simplistic terms, reducing the field to nothing more than cells in a Petri dish under a microscope.
Obviously, it’s much more than that.
I think biology answers or seeks to answer the HOW, WHAT, and WHY of human affairs within the earth.
It seeks to give us answers at the level of the cell, more microscopic than the cell, and much larger than the cell.
All of this is what it MEANS TO BE HUMAN.