Whoever wrote that needs to do a little more research. All deer will have creases at the base of the ears. As BuckAlley said, all of them may or may not show due to the length of the hair. On most of the deer here in Ohio that I mount, it' s very difficult to see the creases. However, on early season capes, they' re very obvious on all age deer. Regardless, but the time a buck gives me the chance to count his ear creases, I should have already made up my mind.