Well, not really attack, but ran at the bear when it was charging his owner. Saw on Landgraf FB page it was one of theirs.
www.ctvnews.ca

‘A very brave dog’: Alberta Doberman honoured for saving owner from grizzly bear
A Cochrane man’s 10-year-old Doberman has been inducted into the Purina Animal Hall of Fame after saving him from a charging grizzly bear last spring.
