Same as any other living thing..
Of course - it's call survival-.
We didn't get to where we are on the food chain with our charm and good looks.
Like a massing horde of zombies slugging your way.
Do you know what "instinct" actually means?
Obviously you know and I don't... Enlighten me.
Well, there is some discussion, but your use of it is unusual. Watch a book now and then so you are aware of those sources of misunderstanding.