It used to be as easy as animal, vegetable, and mineral. My fifth-grade daughter was assigned some homework for the weekend. She had to illustrate the Five Kingdoms. The Five Kingdoms? Well, there's Munchkin Land, the Emerald City, Winki Country... "No, Mom, you know, Animals, Plants, Fungi, Monderans..." What? Monderans?
When I was her age, all life was divided into the plant kingdom and the animal kingdom. Since then, discoveries have strained the definition of a plant or an animal.... READ ON