At 10 weeks old and 16 weeks old ... Boi-yoy-YOING and she's all ears. She's a rescue 50/50 GSD black and tan mom and Dutch dad. Smart as all get out, I've never had one like her. Our 5 lb middle aged Maltese was less then thrilled for the first week and then fell in love with her. Now he walks around proudly drenched in her slobber constantly.