I hope someone can answer this question. How this question came up was when I mention to my girlfriend that the whitetail deer loose there rack every year. She didn' t beleive me. Well I showed her an article on it and then she asked me a question that I could not answer. I know the racks come back every year and they grow fast. Here is the question " If they loose there rack every year then how does a 10 point become a 10 point the next year?? How does nature know to grow back the same size every year?? Does anyone know??