When People Fled Hyenas - Oversized Hyenas May Have Delayed Human Arrival in North America
Sadly, Buddy passed away last Sunday morning. He died in his sleep. He was 5 years old.
I'll miss him dearly. He was a very good dog.
Your link didn't work for me but this one did.
http://abcnews.go.com/Technology/story?id=97822&page=1