I don’t remember what was told in high school about this and wouldn’t have learned it at Lee but I was thinking today about how we all come from single cells around & billion years ago. I’m speaking scientificly, of course. Then, we evolved over 4 billion years to get us where we are today. What I don’t get is how those first single cells figured out they could reproduce. I wonder how they figured that out because by the time they would have evolved, they would have died. Of course, I don’t know the lifespan of a single cell.