We humans are the only animals that know we will die
Every day since we live we know we will die. And knowing so makes us cling to life. So much that we create the idea of heaven, of God. I am so relevant that I can´t really die. I just change, go to a different world, be it heaven or hell. I am more than this. Rubbish! The fact that we know we will die doesn´t make us lesser animals.
Expecting to be something other that animals