You Can Learn To Recognize A Satanic Attack I once took a course in college about trees. The goal was to be able to identify 150 different types of trees. Most of us can tell the difference between a coniferous tree (one with needles)  and a deciduous tree (one with leaves). After that it gets a bit harder. My professor started by explaining about the different shapes of the leaves or needles. When I learned to recognize the different shapes, trees got easier to identify. It took some work but once I understood the key I could identify any tree! ...