I have a 13 week year old female presa canario. As of right now, I have decided not to get her ears cropped. However, her ears worry me. The do not lay down. Her ears go straight out making her look like (for a lack of a better words) a donkey. Is there any way to get her ears to lay down ie. tapping them down, or will I be forced to crop her ears or should I just give it more time since she is only 13 weeks old.