I jus came back from south goergia and I notice that a lot of the cows is difrent. They seem to be a lot of cows wth big ears. I notice that they look the same color as black cows in tennesee but have big droop ears. Why thay have biger ears? Even the wite sharlay lookin cows have bigger ears and the bulls have taller necks rite by there backs. Is this cause its hotter thare?