I listened to a podcast once where some physicist said that if even one of our constants (remember that stuff from science class?) changed a little, none of the world would or could exist near where it is.
Whatever species was top dog on Earthish might not feel emotions. They might not crave togetherness. There might not be Bermuda grass and sandy soil in North Carolina-ish. Those dudes might not be enamored of hitting balls with sticks into holes like we are. I’m glad things are the way they are. For them, and us.