Only human beings, it seems to me, have mathematical-logical ability to any significant degree. Only human beings, for example, can hold perfect geometric forms in their minds' eye. Does any other species have this ability? Why do we?
I call this the divine spark. It is this ability that is the basis of science and technology and our beginning exploration of the cosmos. It is this ability that has created our fabulous standard of living. It's not that we walk upright and have jointed thumbs that makes us so different and special; it's this mysterious ability to understand and manipulate physical reality. Why do we alone have this? What is our responsibility in using it?
