| in a world full of preys and predators, intelligence is what needed to survive. Human are at the top of the food chain, therefore human are the most intelligent. What is at the bottom of the food chain are the least intelligent. Yet the dumb virus and bacteria can kill any human being very easily and very quickly. They hide their dumbness by being very small so that it's difficult to see them and they are also plentiful by the millions in a drop of water. |