I can add another tidbit of factual information for general knowledge and awareness: Brown bears attacking people riding bikes on trails in Alaska has happened enough times in the past 10 yrs that the "experts" now rank it as higher risk than walking. Walking least risky, jogging more risking, biking most risky.
The "expert" explanation I've read is that people riding bikes down trails in bear country approach quickly and quietly, surprising bears along the bike trails at close range. Bump into a sow with cubs at close range and expect to pay the toll fee for threatening the sow's cubs.
One incident happened about 5 air miles from where I live ~6yrs ago. The man was riding his bike on a power transmission line right-of-way near his home. There have been several more biking attacks in and around Anchorage and populated communities just north of Anchorage, where bike trails have been established on the outskirts of town. Anywhere a bike is ridden through bear country is an added risk to bear attack, in my opinion. The bear doesn't see or hear your approach until close range, igniting their attack response.