My neighbor sent me an email to tell me her German Shephard, Heidi, died on Sunday. I've spent time with her dogs and walked and fed them a few times when they've gone out of town. I didn't ask her any details because I didn't want to upset her. I'm assuming that she died basically of old age.
Heidi was a beautiful dog and very sweet. She was about 10 years old, had chronic ear infections, and was completely deaf because of it.