You are comparing apples to oranges.
Humans are the only creatures on Earth that Fuck their Dead...
Is that Nature or Nurture?...
peace...
I would not know as I do not fuck the dead.
But since you are the expert on it tell us if it is natural or not.
Don't you love it when they use those sort of examples?
It means they have nothing, and really have no clue what they are talking about.